I know that this is the hardest thing to do: don't let emotions play into your responses. I think of the ex as the mailman. You aren't overly friendly but not rude either. Let all financial stuff go through the L's. Document/keep emails and payments that have been made and for what.
The easy route is to keep living in the pain and pondering the what ifs and whys. The hard part is brushing yourself off, getting out of the muck and building yourself a better life.
My own personal ideas about dating at this point: You are still trying to heal. There is no point in getting involved with someone else unless you, yourself, are healthy. No one deserves to be a band aide. Women love to nurture, they think they can keep all of those issues and feelings seperate, but can't. We aren't built that way. Keep going out with groups and stay busy. You will be fine.
kat
Me-53(and learning!) S24, S21, D18, D17 Just keep swimming, Just keep swimming. Dory