So my girlfriend and I have been dating for about a year, were both 17. When we first started dating we were all lovey dovey and couldn't get over each other, but now we both love each other very much except I don't like too much PDA. I try to signal it to her, but she still kisses me in front of friends, and even lays on me in front of her parents. I don't want her parents to dislike me, and I highly doubt they appreciate her always on top of me. I also don't want to just tell her all of this, I wouldn't want to create problems when she's already been a bit moody lately. Help!