<human>: Can you provide a brief rundown of the text in within 3 sentences?

I'm 19 and female, he's 20 and male.

We've been together for a six months and a bit and are very much in love, we spend a lot of time together and are compatible in so many ways it's insane.

I've never had a healthy relationship before he came along, and he had only one girlfriend (back when he was 14) for about a month before becoming a massive man slut. So, in a way, we are each other's first serious relationship.

This doesn't really bother me, but what does is that he seemed to be a lot more publicly affectionate with other girls than he is with me. Not so much physically, he went from being unable to hold hands in public to kissing me on street corners, but in other ways.

For example, he has taken his fair share of cute pictures with his exes, as well as had loving public conversations with them on facebook (he's maintained good relationships with almost every girl he's been with, so they tend to reappear and say hello a lot, leading to the inevitable facebook stalk). I know it's immature of me, but I can't help feeling jealous that he's refused to take pictures with me and is very distant when it comes to facebook. If I bring it up, he'll post a fun video on my wall in an attempt to show he cares, but still refuses photos. So I know that he's trying, but it's still a little painful that it's so much more of an effort with me than it seems to be with them.

I keep reminding myself, "He's become more affectionate *where it matters*, so shut up," but there's still that little bit of hurt whenever I see him comment "<333" on an ex's wall post while ignoring mine.

So...am I being petty? Or am I right to feel jealous when I see these things?
<bot>: Boyfriend has cute pictures with exes and has had affectionate conversations with them on facebook, but not with me. He very obviously loves me, but I can't help feeling jealous.