I feel like my fiance still loves his ex.

So.... Ive been having fake pages messaging me on IG. Threatening me & my baby & talked bout my son i lost in the past. I know it was the ex cause she tried to follow us more then once i let her follow but my fiance keeps blocking her & unblocking her. I said thats dumb! Idgaf bout her she wants to know what we doing. I mean im happy. Arent you happy? He said yeah. But i dont believe him. Cause i told him i know its his ex. Her best friend told me that was her. She said she felt sorry for me cause when we was at the funeral. She was there. She was talking to his family. She was like lingering & stuffs by them. I didnt know that was the ex. I didnt care at first then when they lied who that was made me mad. Even my fiance lied. So i messaged my fiance sister who was that. She said that was his ex. I snap i said that her brother lied & her mom & her other sisters. The ex kept staring down on me. I didnt care. Until she laughed at me & said "He no love you know that dumb bitch" i said its a funeral cuz. Take it easy. So i can take it easy on you. I aint gonna desrespect my fiance friend funeral. & my fiance laugh. When she made fake pages & message me my fiance said he knows her too good aint her. I said thats bs. Cause she knew my business when she talks to his other sister. I know he still loves her. I dont trust him cause he LIED that the fact he never did went out with her i didnt even ask anything all i said was "Chablis said if you wanna eat dinner for your birthday" then he said "I didnt went out with her. I just wrnt school with her. " then he started to cry. I said "Wtf i didnt ask you anything but what chablis told me to ask you. " its sketchy. & im 8 months pregnant. So i know when someone still loves someone else. He use to look at me that way. Now when he saw her like it was a first sight thing. So if he dont love me i no like marry him. He can see our son but nothing to do with him. The lies abuse that he does to me mentally physically emotionally & the lies got me to the point i am Done!

Oh & when they kissed each other on the cheek she hug him again & smile at me. I was like okaaaaay .