A good slogan to remember: What other people think of me, is none of my business.
You have to do what you need to do,
for your own life.
You are NOT a horrible person for having taken your Dad in, just misguided
You will NOT be a horrible person for kicking him out! He is
an adult. You're right that this situation is different than your boyfriends, you boyfriend was a kid, your Dad is not.
If it makes you feel better, give your Dad a list of local AA meetings and times, and directions to the local Salvation Army.
Don't let your Dad's sickness ruin your life lettec, it's just so unecessary.
Look, your Dad needs the help of other addicts/alcoholics, you can't help him, you simply aren't qualified. Think of booting him out as a step closer to him figuring this out for himself (maybe).