Jumpy, how are you doing with No Contact? I think there must be a way for you to both work on the house and exchange the pet without seeing each other but you have to follow through.
I am stuck seeing my WAH now and forever and ever since we have a baby together, but before our son was born, we arranged to not be in the house at the same time (also, he was working on the house) and just left written notes to communicate.
It was torture for me for the first 3 days, then got a little more doable, and by the end of 10 days I was doing fine. You can do it too! All my progress was undone once the baby was born though, but at least I had a good excuse. :-)
me,34 exH,34 S,16 months S:3/31/09-left for OW started DBing 10/09 d final: sometime 10/10 current: http://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2022856&page=1 met in 2004