I would like someone with experience or knowledge to answer.

I've noticed few things about girlfriend's sexuality:

1) When we started dating and having sex, she would like to flirt sexually over text, in moderate amounts, nothing vulgar, but excited, like admitting to horniness before our dates, tease me in public very often, and so on. As we found a tempo in quality and quantity, she almost stopped that, and it seems like she prefers not to, anymore. Just sometimes she would talk normally and act receptive(as in "we can do it") when I bring some ideas to talk about, but its like she would keep that for 'bedroom' rather. I guess not a big deal, but I feel like 'too horny' because I have very high libido in every way, and I don't like the idea of her not getting turned on just thinking about it because she already 'experienced me sexually'.

2) All of the above resulting in a thought that we haven't found balance between emotional and sexual in relationship. We don't have sex too often, but when we do, it can be amazing and of course there is variety. However there are periods when she's not in the mood, and when it happened the first time, she felt bad. After a while, she admits to having different moods. When she's not too sexual, she's highly emotional. When we're sexual, she sometimes prefers emotional involvement which leads to avoiding 'dirtiness', ie. then I notice she isn't comfortable with doggy style. At the same time, she admitted to like variety, for example when I pushed her to wall, standing, and I got her to enjoy more wild sex, being nasty, but sometimes its obvious she feels offended, "blocked" by it. Its like she needs right buttons to be pushed in different cycles.

Once when I escalated and we already prepared porn movie to experiment, I walked to bathroom, she had annoying(I could tell) phone call from mother, I come back and it was the first time she threw "not in the mood" at me, apologized, and came up with "prefering to have it slow and not running out of time". Now, as I've noticed for a while, she's more for quick and 'in a row' than slow and long, and admitted to it. Because I can last long, and do all kinds of stuff, she gets wasted. But she doesn't get that she should voice up these preferences, in communication. It seems like she really leaves me to lead, or hit the right spots every now and then, and then we finally make it mutually.

3) Most importantly. She has this "getting different" symptom after sex. Sometimes, she cuddles and is released very much, but doesn't act emotional later as she usually does. When we don't have sex for a while, she's highly emotionally invested. But wheter right after sex, or after-sex-cuddling she might get notably less lovey-dovey, or leave "I'm satisfied, now I'd like to go to sleep" impression, or subtly show some sort of space emotionally the following day(it can mean she'd rather spend time with friends then).

Is this normal, and I'm a little bit to eager to be worshipped all the time, or can this indicate some sort of bipolar behaviour, 'backing off' or something? Sometimes, she was very affirmative about being bipolar, and I don't like it.

4) She's not a strong character, and its proven by her sexual event from past, but that's another topic. If her female friend pushes her to go to club, and she really doesn't like it, she'll still have trouble with saying definite "NO". She acts as she's somehow obliged to appease her friend's wishes. And she does know what I think about clubbing, I'm sure she does. So she always finds excuses to refuse them, except 'once in a year'. And it should be tomorrow (even though that friend is not single). But I'm not OK with going to night club(its not a coffee bar) on GNO, EVEN ONCE, especially during weekend as it's 100% meat market, and I know it very well. Its just gonna bring troubles, as she already had some assertive "attacks" during day, let alone night club. She doesn't like dancing or socially turbulent situations, 100% proved, but I don't know why she can't say "listen, we can hang out, but I don't like this exactly, so count me out". Apparently, if she won't go tomorrow, she will at one point, because this friend pushes it. I'm not insecure about it, its just troublesome that she won't understand what message is sent to me by going to a place where braindead idiots only seek to score 'victims'. I can't imagine her being in "grinding dance" situation, she's not that type, otherwise she wouldn't be my GF. I am secure she doesn't like such SPAM, never did, but even though I won't say anything if she chooses to go once, and its not about fear of cheating, she's aware of risk. Its crappy if she comes to me again with "this creep scared me, I had to search backup" and so on. Can't control her, but why call for it and unconsciously cross boundaries? (I'm sure my point got across few times when i said I consider night clubs as meat market)

For me, night club is place for single people, whenever I go I realise that. And this friend of hers is having trouble with her BF currently - she's badly needy because he stopped being, meaning she's more neurotic, so I don't like the idea of her asking my GF to go to a night club.

Girls get too confident about such situations, they think self-defense is possible/they're gonna have total control, or don't expect anything, but the next day either cheating happens, or they come to you and say some jerk was molesting them, and then what? Physical violence is expected from you to get her pussy wet?

Otherwise, she's trustworthy for non-dramatic relationship. Yes, I'd prefer her to fanatically want the second weekend day WITH ME, again and again, not her female friend with whom she's worlds apart when it comes to life-style, but I don't know if thats too needy at first 9 months, or she's a bit hard to qualify as dead serious girlfriend.

Opinions?