Need advice ? 🤦🏽‍♀️😞

It’s this guy I use to date that I graduated with well anyway he was blocked on everything I had made a new Facebook messenger account somehow he found me but the point is he was apologizing for how he did me & that he wanna make it up to me want me to take him back saying I really was there for him & he miss me kept blowing my phone up but the thing is I know he tryna use me like he asking me to have sex & stuff plus he got a girlfriend & a baby on way , today I told him I won’t allow myself to let him use me or I won’t settle for less waiting on right one but he making me feel so bad way he talk to me just cause I won’t allow him to use me or give him a chance just let him do anything its just sad fr like he really think ima be stupid to give him some he got gf & a child on way , & the point is I haven’t been the one texting him he the one been finding ways get in contact with me text me on my new Facebook & he got a new number text me but he talking bout leave him alone like it’s me no I’m not stupid he ain’t getting nun from me I saw the real him with way he did me when we was together , I just need advice on everything