You've gotten some solid advice so far in this thread.
Here are my thoughts:
First, although you had this girl on the golf course and making out and such, you could have been escalating WAYYYY harder throughout the entire interaction. Escalation begins the moment a girl gives you a sign she's into you. Dirty talk, manhandling her, throwing her into walls, pinning her hands behind her and biting her neck are all great ideas.
I know a lot of gurus and other assorted shitheads claim that you shouldn't escalate too hard in public or too early or before you get her back to your bedroom. Those guys are morons. They get a lot of resistance. I promise you that. Because if you've escalated hard enough, and literally told a girl that you cannot wait to get her back to your bedroom because you want to do all sorts of dirty things to her... well she's going to know what's about to happen when you get her back to your bedroom because you just told her. If she's there, she's very unlikely to be resisting.
Resistance comes up when the girl is not properly turned on. When she's thinking too logically and not letting her desire to get FUCKED ROTTEN take over her actions. There's a beautiful thing that happens when you've gotten a girl really horny - she will become the aggressor or will literally do everything you tell her to. It's quite lovely.
Learn to escalate and turn a girl on with tons of dirty talk, push/pull, rough & physical escalation, and you'll rarely hit any resistance ever again.
That said, a few specific instances you could have improved once you were back in the bedroom are as follows:
1) When she shot down your boob grabbing... "I tell her she is too inconfident about it." NO NO NO NO. Never again dude. This is the opposite of good game. By bringing this up all you do is cause her to think about her own insecurities. This does not get her turned on and remember what i just said above? Your only mission is getting her so turned on she can only think about having you plow her. In this situation, a great move is to simply play the "uncontrollable beast" card. Simply say something like "I know, I know... I'm sorry, but I'm just so turned on by you I can't help myself." While you do this (whispering it into her ear with seductive tones), you should probably be pulling her head by the back of her hair or some other such dominant and aggressive move. It sends mixed signals and she'll immediately get horny.
2) When you got to the puss rubbing and she told you she was a virgin... first, as others have said, if there are rules that she has, you have to respect them. No amount of game will get through a girl's rules. I don't care if you are a SUPER GURU PUA 9000 LEVEL MASTER, you will not bang a virgin that wants to remain a virgin. That said, when I heard that, I probably would have rubbed my boner against her thigh and said something like "Oh, so I guess that means you have no idea how good it would feel to have my hard cock inside you. [PAUSE, BITE NECK, BREATHE HARD, ETC...] Well let me tell you.. It would feel amazing." Again, you should be in her ear while choking her (or some other dominant move) in this situation. I'd try that a few times, pulling back and just being cool and genuine if she still resists before trying again. If after a couple tries, she's still not game, I'll just tell her it's cool and be a normal, nice person who doesn't GET ALL BUTT HURT BECAUSE A GIRL WON'T FUCK.
And always, always, always say AND MORE IMPORTANTLY MEAN the following statement whenever you get a big bit of resistance like this: "Don't worry, I would never make you do anything you didn't want to do." Live by that rule. It makes you a good person and interestingly enough, simply by abiding by it, most girls will let you do whatever you want to them
