I (20) and this chick (18) were having a conversation outside. I saw her kissing some fat dude my hight (1.65) (I'm fit). We started talking about sex (both quite drunk), and she was like "You can kiss me right now" and I said "I'll kiss you when I want to" and after like 5 minutes (in which I started touching her leg) I say "Alright, I'll kiss you now", and she went away, and after half an hour I see her kissing with another (taller) guy outside, and after a while leaving with him (probably to her place). What to make out of it? This is really hitting my height self-esteem.