Husband disrespected me again?

EDIT: back then he would try to meet them up for sex. He confront and told me he didn't have the courage to actually go meet them. Tonight, the girls he snapped, he compliments them and try to have a talk with them.

I saw a post regarding their husband "cheated" on them on snapchat back before they were married and a lot of you guys commented and say its not cheating. Well back in July I found my husband of almost 6 years been talking to girls on snapchat after we had my first born. So it would be 3 years ago. When I caught it I told him I forgive him but will never forget it. So of course this is when the trust issue begins. I just found out tonight he been doing again. Soooo what do I do?? Like you guys say its not cheating? And when he snap to these girls he disguise himself as someone else as in using a different name.