He is leaving to be alone to THINK - now what?

[ourcrisis]

major discovery (or not as I expected it)
He left last night. I dropped him off. This morning I went over early because I feel like I should give him a "proper" and "positive" good bye. I waited outside on the street and texted him. Long story short, OW spent the night inside.

I was VERY HURT. After I calmed down a bit, we talked. I told him I will not hear any more lies (all this living alone BS). His version is as follows. Rather than living alone to think, he has actually already decided to stay with me. This whole moving out thing is to give her a "soft landing". OW complains that she was not given enough time with him (he ALWAYS comes home). His plan is to move out per her request, convince her that he misses me too much and ends it. OK, I can understand that (this is HIS personality, OR is it the same with all MEN, ha ha). Of course, I do not agree but that's not the point.
I repeatedly tell him if he is lying, just end it right there with me rather than wasting my time, energy, tears, and feelings. He said he is not lying. He only asks for a few weeks to finish this. He still claims no PA anymore.
Now, I am VERY HURT (did I say that already?) On one hand, i feel like giving up with all the lies. I do not know with all these lies, how I can learn to trust him again. I told him I want him to be happy and I want myself to be happy, meaning I will have to trust him or the marriage won't work. With this, I am questioning if I can trust him again.
On the other hand, knowing him for 20 years, I am not surprised at all about his way of dealing with this, moving out, staying with her, and ending it the way he plans to. This is my h. Do I trust him again on this and wait a few more weeks? It makes logical sense as I have DB'ed so long, what's a few more weeks.
I just realized I am so mad because to me, lying means he is not showing me any respect. By lying means he is denying me the option to think for myself and make my own decision. That's why I feel so betrayed.
HB, so much for ending the encounter on a positive note. Lots of tears with my racoon eyes. Oh well.