My bf isn't intimate with me.

My(24f) bf(22m) isn't as intimate anymore as when we started dating, i tried to talk to him about this and he just says he doesn't want to do those things as much as before, nor he thinks about those stuff, he doesn't masturbate, he intimates wirh me like once in 2 weeks, and I'm very active and i feel like i need a lot more, i love him so much but I'm starting to get uncomfortable with this topic. what should i do?