I was just yesterday wondering where you and a whole lot of others had got to, when I saw this. I am very sorry you are at this point, but if you look at my thread you will see much the same gloom this weekend. So I am not going to be a ray of sunshine either.
I don't want to pull you down further, so will just say, hope you can see your way out of this sad situation some way.
You didn't elaborate on the argument, - are you sure it was not just something that got out of hand where H wound up saying thngs he didn't really mean? Or did he cold bloodedly tell you he didn't miss you?
Don't give him any letter until you have slept on it a few times.
Livnlearn
"The unexamined life is not worth living" - Socrates