""I should have been the one to let him know more fully what was going on but I let my fear of being rejected and my sense of self-righteous indignation (you don't want to talk to me, I'm not talking to you) take over."""
Your fears are so normal and what do they call it??? Human.
Dont punish yourself for being hurt by him and being afraid of being rejected by him. The past 18 months have been a tramadic period of course you are weary and afraid of his hurtful behavior. What he has done is extremely hurtful.
That said you woke up the next day and did the next right thing. Very few problems need to be resolved the second they appear.
Sometimes we dont make the 100% right decision in the moment but that does not mean we cant go back and apologize or revise our decision.
Give yourself credit for doing your best during a ticky sitch
---- M 39 H 35 D5,D4 M 4 T 9 ILYBNILWY 5/18/11 Left 7/11/11 Divorced 12/1/13