Is OTHER wrong in the post ? POST : Everyone thinks I had an affair and/or left my husband for my new SO. That's not what happened. 

It was hard to pick a short title, because this requires an explanation.

My ex-husband and I separated a few months ago, after things just not working for over a year. I still love him, he's wonderful, we just weren't right together. During the two months or so before we moved out separately, but had already started the separation process (figuring out car payments, going through belongings, etc), I started "talking to" someone. Once ExH and I split, I officially started dating this guy. 

Now, everyone (including ExH) thinks I left him for new SO, which is not at all the case. But I'm starting to feel like the asshole anyway. 