Hey mate, just been reading through your posts.. to be honest bud, you've made quite a few mistakes haha! - but shit man, nothing is irreversible, so stay chilled with it.
Like the chap above said, you are now deep in friend zone and you need to address that asap. You need to show sexual interest in her but also need to start increasing your value. One solution would be to ask her what the situation with her boyfriend is now and if she tells you that it's over, ask her "what, as in proper over?" then when she confirms you can say something like:
"nice, I've wanted to play with you since you first arrived her, but I'm not an asshole and don't like messing with other guys girlfriends.. I guess you noticed I've been a bit weird right? hehe.. yeah I've just been trying to restrain myself".
That way you increase sexual arousal, but also wipe the slate clean giving a reason for your AFC behavior. You'll also show her that you're a sensitive guy with high integrity and all girls love that.
Then just cut straight to the chase mate: "okay you little heart breaker, now you're free and single, we're going out to have some fun" (just assume she will come, show confidence, don't ask her for a date, tell her she's having one).
You might also want to boost your confidence on your phone game, so once she agrees to the date, say to her: "and what's up with your phone anyway? let's make sure it's working" then call it in front of her, ring it through to her voicemail and then leave a message in front of her: "hey it's [name], clearly your phone works fine, so you got no excuses when I call, we're going out soon and are gonna have loads of fun.. make sure you're in a good mood for a change.. you gonna be in a good mood?" then pass the phone to her, and get her to confirm she'll be in a good mood on the voicemail, then take the phone back and finish the message: "ok sounds like a plan (turning it around to make it sound like the date was her idea) see you soon then my little Pam Anderson (she's a sexy lifeguard right?)"
She'll relisten to that voicemail when you're not around and find it funny. Then, next time you ring, she'll pick up having associated your calls with fun. Game on mate.
Just be confident and stop acting like a bitch.
P.S. To be honest though, this girl sounds like a bit of a head fuck - happy one day, grumpy the next.. maybe a better idea to just forget about her and move on as she sounds like emotional high maintenance and you don't sound like the sort of guy who can deal with that.
Anyway mate, good luck!
