<human>: I'm 2 years older than my boyfriend of 3 years. Before meeting him, I spent a lot of time with my friends, who are all my age or older. Nowadays we are spending most of our social time with his friends, just because they live much closer to where we live. 

His friends are his age or younger (some as young as 21), and they are very concerned with age. The jokes pointed at me being "sooo old" have kind of slowed down, but they still happen every once in a while and they still bother me. (Sometimes at random get-togethers, they go around and ask everyone their age as if they've forgotten. Occasionally, I get paranoid and feel like they're just doing this so they can get to me and make a gross face when I remind them I'm 29.)

I'm worried about turning 30. I'm the oldest person in the social circle, and turning 30 will mean that I am *definitely* ***OLD*** in their eyes. "No longer in your 20's? EWWWWW!"

I realize that their jokes about my age are just a sign of their own immaturity, and I try to keep reminding myself of that. I really like most of these people, so it would be nice to have a party to celebrate this milestone. However, I can't help but feel like I want to avoid having a birthday party at all because I don't want to feel like that on my birthday! 

Can you give me any advice on a "comeback" to use when they make fun of me for my age? Or advice on how to "not give a fuck" when they do?

Can you succinctly summarize the text in 1-3 sentences?
<bot>: I'm older than everyone in our social circle, and some of my friends enjoy making fun of me for it. Turning 30 will make this worse. Help!