Betsy,
Welcome and glad you found us. You absolutely did the right thing. He is an alcoholic and alcoholics drink. He is not drinking at you or to hurt you, he drinks because he has an addiction problem. As Dee said, there are 3 of you in the relationship and you are the man out.
Now you have broken up, what are you going to do? I think you need to get some support. Do you have any alanon or open aa meetings in your area of Canada? These are people who can give you face to face support. I would seek out an addiction therapist. I would look up and read the stickies at the top of the page and you will realize that his behavior (peeing in the bed) is not normal. But you are not the only one on this forum who has experienced that.
This time is for you, now. Seek support for your part in this sick codependent relationship. Own how you contributed to it my enabling him and take the time to slowly heal. Hugs and stick around, you can learn alot.