Is it unreasonable to see your SO’s family 3 or more times a week?

Bf and I got into an argument because I told him I feel like we’re constantly around his family. They literally invite us to do something almost everyday. If I say no my bf throws a fit. He thinks I’m making him choose between me and his family when IM NOT! I literally just told him I feel like we’re always having to do something with them and it’s annoying because I like our alone time. He thinks I’m being unreasonable. I told him I don’t feel I am I just don’t think we need to constantly be around his family. His response “we had our own day together yesterday and your still not happy” I’m just so fucking fed up. I’m sick of feeling like I’m in a relationship with him and his family!