I don't no what to do anymore⁉️

Ok so I have been Bestfriends with this guy for 13 years this year we decided to start goin out on a more personal level now we are having sex and tell each other we love each other thing is he still live with his baby mother he tells me there not together but I don't no what to believe I want to break this relationship thing we got goin on off and go back to just Friends but he don't want that Help me what should I do???? 😩😱😢