My partner of 1 year was caught on a night out by someone I know cheating on me. She said she saw him kissing another woman multime times and dancing aith her. I am heartbroken. He says he was blackout drunk ans dont remember anything but says this woman is lying as his friends say he didnt. However this woman has no reason what so ever to lie about it. It has broken me. I was always paranoid about when he went out before and told myself it was ok as I have not been treated well in thr past and he promised me he would never do anything. However he always gets so drunk to point he dont remember and comes strolling in at 4am. His friends are bad influences too ive never liked them and they all either cheat on their girlfriends or are hunting for girls. I loved him so much we lived together and he has been close to my son who I have from a previous relationship. I dont feel he is sorry at all as he keeps saying she's lying and trying to make me feel crazy but he cant remember anything . I dont know how id ever trust him again. How do I listen to my head and not my heart. I really thought I found the one. My heart is broken. All ive had is shit relationships and this one was the best out of a bad bunch. The thought of starting ahsin and being alone terrifies me. He knows what ive been through in the past aswell. Any words of support or comfort would help right now or anyone who has been in same position .