Every part of my mind hurts

Not to long ago i decided that me and my husband needed a break we were constantly argueing all the time so i left with inattention of taking some time to cool my head but then he started acting weird on the phone and making up excuses like he had a migraine and felt to bad to talk however pics of him on a haunted trail with a bunch of people on Facebook suggests otherwise then while i was just scrolling through facebook late one night i found a pic of him at a bar at 12 at night and kinda snapped because he told me when i left to keep my rings on but he didnt have his on we got into an argument on the phone and i lied and said that someone told me that he was texting dirty pics to other girls when we first got together and he said yeah he was but that he stopped and only cared about me then he admitted to texting another supposedly random girl while we were married and that instead of telling me he told his friends and they told him not to tell me and he is saying that its not cheating even though he hid it from me and now he is saying its my fault and that we are done which is just fine by me but we have a young child together and im not the normally the type to want to do this but i never want him around me ever again and i have our child with me