From one helpless clingy glitterboy to the next , it can be a little tough to avoid being such an annoyance when you don't notice you're doing it. There's nothing with being affectionate but know when less is more, too much and you'll burn them out. Some introspection is not a bad idea. Try and recognize some of the clingy mannerisms and think of when you should limit them, when appropriate.
This kind of thing is tough man but time heals all wounds. Just hang in there. There's not much else you can do.