I don’t know what to do because I already invested so much, what advice do you have for me?

A few months ago I found out that my boyfriend of four years and who I have been living with for three years was cheating on me with a woman he was working with. He got fired from that job but that didn’t stop him from keeping in touch with her. He was doing more than just sleeping with her. Even after he was fired I still caught her in our home on our bed (They weren’t having sex in that moment) but I’m sure they had. I was destroyed and didn’t know what to do. That was a few weeks ago and since then he and I have been like roommates trying to figure out what we’re gonna do as far as repairing our relationship. He’s been in another room. We haven’t slept together, kissed or anything. He got hired for another job today and it’s weird that this new job is not far from the job he was working with this woman at and he’s working the same hours. I could be overthinking it but at the same time I really can’t call it that because he did have her in my home. It’s no telling what he’ll do to keep in touch with her and that’s if he has stopped talking to her at all.

I don’t know what to do because I already invested so much, what advice do you have for me?
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