fiancé never stays home on his days off

This has been upsetting me for awhile, every time he has a day off his buddies are always wanting to hangout and I want him to stay home and spend time with me but that's never the case, he just left to go spend time with his buddy that's off the boat but yet he's always over here. It just makes me so upset and I spend my time crying and upset at home by myself with our 2 year old.