cheated

today is a bad day that my partner have cheated on me.. thats why everything i did for him all is wrong. i found out abour this and my friend rena was angry because this guy already hurt me.

actually my friend dont like my boyfriend because she already know that my partner is bad guy.

when im asked my parner about this, he said to delete that comment or my post.

he promis not leave because he promise will marry me and he know my parent already.

what i should do should i trust him or truts this women? i want to know but i dont want lost my partner.