I have been where you are and just know that it gets easier. The first few weeks for me were a nightmare and I could hardly function. It is such a traumatic shock to find out about an affair.
Lots of good advice on these boards!
T: 14 M: 12 D: 9 S: 6 BD: 2/18/15 (H affair) Working on marriage: 3/12/15-6/11/15 Broken Trust (my error): 6/11/15 H ring off: 7/6/15; Comm w/ OW confirmed 7/13/15 H wants to work on fixing things: 7/21/15