Hello there

I don't have too long to write as I have a hospital apt shortly, but wanted to say hang in there. Please do not do anything rash over the next couple of weeks, allow yourself some time to adjust to the breakup. You sound very very clued up as to everything that has gone on, and very smart. Please keep being smart and understand what you're feeling now will calm down if you give it a chance. I am not saying it will not be still sore, but you'll be able to control it more.
And yes, it's less of a silver lining, more a huge big slab of silver in that cloud that you've been sober for 6 months, and keep hold of that! One day you will be in a good position to be with someone who is an equal, someone who you can be in a healthy relationship with, and also in time, you'll rebuild your life so you also have some more friends - all important for different reasons. As they say, one step at a time, keep going - you will get there.

Please be kind to yourself

Hugs.