Sounds like he could be making you more depressed.Maybe he is finding it hard to handle,for one reason or another,maybe this is his excuse for ending it.Unfortunately,there are still a lot of ignorant/scared people out there.
Medication can take a few weeks to kick in.
Just remember,you have taken the first biggest step by getting help.There is a great personal strength you can pull from that.
Maybe try to talk to him one more time,but if he wont give you the courtesy of this,do you still want to be with him?
Good Luck
Aya