Husband likes his old girls photo

My husband use to talk to many girls before he started dating me. Now I see he still likes thier photo on instagram. He cheated on me last year.. I brought it up to him. Now we just still together with kids... it really bothers me he likes thier photo. Should I just keep quite and continue life until I can save up and leave him? Right now I'm not stable at all. My job is only part time and I got bills stacked.... it's really hurt me and it sucks. I thought he was my forever, but I don't see a future with him.