first reason to get out, because he's an alcoholic and that, not a recovering one but in the midst of it. You have enough problems, emotional issues and have been through the ringer recently and need stability. He is not it.

second is what you've said in the quote.

being with someone because of reasons other than they are the one you want to be with is the wrong reason, period. whether it's because they are great in bed, have money or, in your case you just don't want to be alone, they are all the wrong reasons.

Being alone is not a curse, nor is it anything to be afraid of. In fact a person that cannot be happy alone is the person who should be working the hardest to learn to accept that and find joy, security and comfort without depending on anyone else for it. By doing so you will be more equipped to be happier in a relationship because as it is the only type of relationships you'll fall into are ones where you find yourself needing the other person to keep you from feeling lonely.