Advice & comments??

So my boyfriend and I have been sexually active for a while now. And he has no problem with getting it up, but he does finish pretty quickly. Not that it's unenjoyable, but it's usually 3-5 minutes. It can be frustrating sometimes on my part, and he's really Insecure about it too. So I can't bring it up, I am very nice about it and never call him out when it comes to sex. We've been together for a little over a year. Does anyone else have this problem? Or am I the only one