Hi Moonface, me and DH were separated for about 4 months but he did a moonlight flit to ow (needed space, staying with mates blah, blah, blah) - left me with 4 traumatised DCs, not to mention tip of house and mountain of debts etc.
I actually managed to piece it all together after about 5 weeks with an awful of mindfucking from him (we even had mindblowing sex a couple of times during that period
).
Anyway when I discovered he was with an ow, it all seemed to fall apart pretty rapidly for him. I found out who she was and because her relationship with him threatened her job (in her contract), I was subjected to vile texts and threats from her. Would have loved to have got her the sack but I knew she was a single mum with 2dcs and losing her job would have impacted on them (though she didn't give a shite about the trauma my DCs were going through
).
Anyway he left her within the week and we decided because of what went on, the trauma of the DCs etc, in would not be appropriate for him to move back in, we needed to be sure the marriage was salvagable first. So he moved in with his parents.
But, and this is the big BUT, we worked on our marriage in that time, we had weekly relate sessions (carried on for about 6 months), he came and helped with the DCs after work when necessary or I needed a break, we spent weekends doing family things with the DCs, we had proper dates (going for dinner, cinema, etc), we had weekends away on our own (GPs eager to help knowing what was at stake).
We agreed at the beginning, on discovery, that we wanted to repair the marriage, he was truly horrified at what he had done, at the sort of woman the OW was and it was him that introduced her into our lives etc.
It has not been easy, I have had to forgive an awful lot (truly vile behaviour on his part during the height of the affair, unprotected sex with ow, introducing our DCs to her without me knowing, etc etc). It would not have possible without my DH doing everything in his power to make it up to me and change himself.
If you do separate for a while, you do need some ground rules in place - it shouldn't be an excuse for him to live the single life
with you doing all the childcare, you need time without the DCs too, to rediscover yourself, take up long forgotten hobby (I started horse riding again in this time - costing DH a fortune now in livery etc
).
My DH was genuinely in a bad place at the time of the affair (made even worse by the affair) and he was not sure of his feelings for me (if he loved me why did he have an affair) and he needed to get his head straight. The more we did as a couple and family, the more he realised how much he really did love me, so the separation in that respect did work, it took away all the everyday crap that every one argues about, moan about etc and put the good things back IYSWIM.
He invested what he invested in OW (and her DCs) into me and our DCs. I remember one of the first things I said to him on discovery, what are you doing with her DCs when you should be with your DSs and I hope she is really worth all this trauma etc!
My DH did struggle with our DCs (younger than hers and 2 with ASD) but as I said to him, did he honestly think I have never wanted to pack my bags and go at times? That I never wanted to stop the roundabout and get off?
Affairs are just the height of self entitled, selfish, arrogant behaviour.
Good luck with everything
.