me or them?

My boyfriend and I are high school and we have crappy minimum wage jobs. We don't get to go on very many dates because neither of us really have the money. I'm a big baseball and hockey fan but he isn't. We live near Pittsburgh so I sometimes ask if he wants to get tickets for a game. He always says it's too expensive though which I understand. But his friends just asked him if he wanted to go and he told them he would. I'm really frustrated because that makes me feel like he doesn't want to spend money with/on me but he will with his friends. Don't get me wrong, I don't care about the money, I would probably pay for my own tickets. Though,when he tells me it's too expensive for us to go, but not to expensive for him to go with his friends it's really annoying🙄🙄