u/Aggressive_Isopod190

I 24F went through my boyfriend’s phone 27M and we have been in a relationship for about a year now. It is quite serious and he has introduced me to his family and I planned to introduce him to mine. I decided to go through his phone because I had my suspicions and we had got into a large fight. I found out that he was dm’ing a bunch of girls on instagram and potentially also sending snapchats to them. When I confronted him about it he seemed very apologetic and he said he did it because he felt he already lost me. What should I do in this scenario?

tl;dr went through my boyfriends phone and saw he was messaging a bunch of girls on instagram