I am so sorry you opened up to your T and he ended up abandoning you. I cannot imagine what his colleague could have said for him to do a total 180 like that. It sounds like he made a bad decision when he was feeling the most vulnerable after losing his friend to suicide. (Maybe he feels guilty too because he feels like he should have seen it coming? Idk...just a thought. Not that he had any control over what was his friend's decision.)

I am sorry he burdened you with that information because it really just confuses the issue even more, so it's hard for you to fully process your anger and grief at the loss of the therapeutic relationship when you also feel bad for him. If he has been a great T up until this extremely abrupt end, that would be difficult for me as well. Can you write him a letter in maybe a week or two once you have processed all of this a bit more? Not necessarily expecting an answer back, but perhaps to provide some added closure? I do also hope he provided you with referrals, btw!