Be patient. Remember, don't believe a word they say and only 50% of what they do. You're letting this get to you which means you're still not detached from it. Just take a step back and do what you did when you got the letter from the bank. Take your time before answering a text or a question. Let your feelings pass and then answer while level-headed, if at all. Things is, when you've calmed down you might just be able to laugh it off and not answer. I would also avoid getting into a convo when he's drunk.
From what you're saying you didn't know that he'd been with other women. I'm sorry you had to hear this but again, it's something many WAS go through and at least now you know.
Maybe you should pull back a bit and let things settle a bit.
Freshman Class of 2012
M-49 W-42 1D-10 T 10 YEARS M 9 YEARS EA/MLC 07/2010 Separation 28/05/2012 PA confirmed 31/07/12 W Asked for D 31/07/12 D on and off the table since then