If it's really about intimacy and not relationships that's an entirely different question. If that's the case you probably need to examine your motives before anything else. As you've seen already, even emotional intimacy can create problems if there is not an existing relationship in place first. The pleasure that intimacy promises is in many cases just like alcohol in that there are lots of other things that go along with it that we don't think it until after its too late.
Your desires and thoughts on this are really something you could explore a lot further with a counselor or therapist...and possibly help you get at the core of the issue. It's quite possible that your addiction to alcohol and relationship/intimacy obsession is related.