The Consequences of Putting Friends First

He had online friends and assured me no flirting ever. I forgave his line because it was before we were together. He admits he's been flirting with them throughout. Even contact with his ex despite saying how much he hated her. Avoiding to talk about the future after several years together ended up wasting away five years with someone who didn't want the same things as me. They needed to be liked by everyone, he ended up having an affair at work.