In need of a girls talk 😩

So i met this guy back in June.. Our first date we when shopping. He told me he had twin boys( they just turned 1)and a possible baby girl... Come to find out the baby girl and her mom(his “baby mom”) lives across the street from me...months goes by we’re chillin more, he stays the night with me(practically living with me).... We always have a great time whenever we hang out..While getting to know each other more, he explains to me he had cheated on his first baby mom(the one with the twin boys) with the girl who lives across the street from me...... August comes around he tells me that he misses his first baby mom.... Mind y’all we been kicking it since june..... We had another talk and he tells me he still in love with his first baby mom...... At that moment i felt hurt like you knew i have some type of feelings for you and you say that.... So we had one argument and i basically hit up his baby mom on facebook to let her know what wassup...(i know so petty 🙄) but i did not come to her all crazy... sooo long story short he got mad that i hit her up (because he wanted his family back) BTW..... he introduced me to his twin boys.....and me and him stop talking... i forgot to tell y’all he lives right behind my building 🤦🏾‍♀️... one day i got off work he seen me walking into my crib... he stops me and was like why you do that... so i told him why...long story short we started talking again.... it’s now October he still comes over, stays the night with me.. Even cooks for me y’all😩..... but listen to this ( him and his baby mom are suppose to be back together now working on “their relationship” meanwhile he’s still coming over and sleeping over... To my understanding she doesn’t know we stillcommunicate. He basically lies to her,sneaking and creeping around with me... What should i do ya’ll? I really like him a lot and clearly i have feelings for him and he makes me happy😓... At the end of the day i know I’m waisting my time... p.s also when me and him were chilling together... hun and his first baby mom were not together

Update—— me and the guy still had continue to meet up and he was still coming over staying with me.. until today 10/28/2020 i decided to leave him alone for good.... He is now back with his family and I’m just heartbroken 😔 simple fact of i wasted my time with him and i caught feelings for him 💔