Summerpeach,
You are a STRONG, BEAUTIFUL, SMART young lady. I say good riddens. The man has been bringing you down for a long time and sucking the life out of you. You may not want to think this far in advance but one day, someone will comment how glad they are you are back to being YOU again instead of having to worry about this dead weight. This new chick will never last. What he did was cowardly. If he had an issue, he should have come to you but his compass is broken.
Oh he will come back begging. I know you dont think so but be prepared for ANYTHING at this point. He may fall off the wagon and blame you etc..Just stay alert and in the present. Journal, talk to us, take baths, whatever YOU have to do to get better. Let him clean up his side of the street. You have been there for him thru thick and thin and this is how he repays you for YOUR loyalty. Young lady, kick this turd to the curb!!
Praying for you my dear...
BIG hugs
Lulu (E)