Another thing to think about is "loving his potential". Are you in love with him EXACTLY how he is today, now. Or are you in love with what he COULD be like if he changed?
If you're waiting for him to change then you're life is going to be one long disappointment, wasted on waiting for someone else to POSSIBLY change and make you happy.
What if he doesn't EVER change? You could wait your whole life and it might never happen and you don't get to find out it will never happen until you're there.
One big thing I've learnt from this site that has helped me alot is detachment. Learning to make yourself happy, not depending on him, not letting him control your emotions...just getting on with it, making my own decisions and not depending on another....letting go. You CAN'T change him, you're wasting your energy, your tears, your pleading, it won't work.
What will work is educating yourself about alcoholism and looking after yourself, putting yourself first.