My situation was a bit different. H never moved out because he wanted to keep the house and therefore expected me to leave. I was taking my time because of the financial aspect (I asked him to refinance the house first so that my name would be taken off the mortgage in case he was not able to pay all of the bills) and when I was finally mentally ready to make a move and told him about it - that's when he knew he run out of time and asked to reconcile.
He is on Effexor and has been taking it for only couple of weeks before he asked to reconcile and is taking it still. He will most likely be on it for about a year. He has some of his own demons to fight that have nothing to do with our M and that's why he wants to stay on it.
He had an OW - supposedly they just kissed, went out to dinner once and couple of lunches in between. That's according to him - don't know how much faith I put in it. I'm trying though. She is a co-worker (supposedly works on different floor and he barely sees her at all now - he used to make that effort when he was pursuing her) but only a part timer. According to him, she never had much interest in him and actually used him as a rebound from her R with someone else. I don't feel sorry for him at all when it comes to that.
My H always had a weird R with his family - they are not local and he talks to them maybe once a month, he never abondoned his friends or was abondoned by them.