Mamas boy?

So me And this guy have been dating for a while. When we hang out at his place, he refuses to have sex with me Bc he says its a respect thing ( he lives at home). But then little things he does always reference his mom,
He's such a mamas boys for instance: I walked into the house and leaned in for a kiss he DENIED ME. When I walked in his mom was sitting there by the table having dinner! am I thinking to much into this or he's really a mamas boy? And what should I do?