How do you know when it’s over?

My husband and I have been having marriage problems for a couple of years. But it has gotten progressively worse over the last month. We even had conversation of separating. We were away from each other for the first time this weekend. He was camping in Oklahoma and I was in Dallas. If I’m being honest, I don’t think I really missed him. I was actually happy being alone. I found myself singing in the car, not feeling stressed out, content, happy being alone. We came back home today and we just haven’t really been getting along. I’ve been distant. Not wanting to touch him or be around him. I would rather be alone. He’s been trying to be lovey with me but I just don’t want him to. Is this how I know it’s over? I really don’t know what to do...