Boyfriend and roommates

A while back i had posted about the situation of me and my bf not being able to get an apartment for my sophomore year because he procrastinated and now i ended up having to move with roommate which he was totally against because it could've been a guy but i ended up getting two girls and my bf been driving down to cisit me whenever hes off which I didn't mind but i got a job now and so sometimes hell stay while im at work nd class and wait for me to get home. But do yall think its ok to leave him with these girls at my place or am i asking for trouble. Another thing is my mom says him being over so much he gets to live for free now when he couldve hustled to get our own place, is she right?