It's wrong because it's bad for you, love. You're right, it's hard. People who use heroin get desperate for another fix, it's very similar. Even though it's only going to put them to sleep and make them poorly - and they know it - it takes strength to resist the craving. The good news is, it passes. The more times you don't give in, the stronger you become.
Says Garlic, who can't give up smoking 
Abusers gradually make you feel like you don't exist without them. This is handy for them, because they don't really recognise that you have a life of your own: they're only interested in you when they feel like pulling your strings. Like a puppet. They get you out and bugger you around, then shove you back in the box till next time. After they've trained you to be a 'puppet', you sort of forget that you have, in fact, got a life of your own and can do whatever the hell you want of your own free will.
You have got a life, you can do stuff all by yourself! You know this, of course. So do something just for yourself! What do you really like doing? Call me weird, but I love automatic car washes. After X2 left, I took my car for a wash every day for about a fortnight 
Just because I could.