Most Helpful Guy
I can understand and yes being clingy, being too needy these are not the quality that impresses people, be it anyone guy or the girl , these qualities are a turnoff, so I can understand how it must be for you. Yes you were right, if you understood him you shouldn't have led him on, you knew that was bothering you, right? I don't think you can say that without hurting him, unless you want to lie to him, you don't want to, right? so it's okay just be polite, yet firm and honest in your decision and let him he deserves better. You can also point out his clingy nature, to him but in a very polite him, let him know how it has affected you, so that he won't repeat the mistake with someone else, then you can part ways with him in a good way. However you can't do that without hurting him, whether you are polite or not, a rejection is a rejection and it hurts so that you can't help. Yes he will be hurt, but in time and depends on how strong he is, he will recover.
I want to make another point here. I am sure everyone has their drawbacks, every type of guy that you meet, or will meet will have some drawbacks, flaws, for example the type of guy you mentioned, though he was a sweet guy but he had a drawback right? so in future what I would suggest is spot the negative points, the drawbacks in a guy as early as you can and take the decision whether that is acceptable to you or not, if not then make it clear to the other person before you start the relationship itself, don't try to change yourself or compromise with the nature of the other person, it doesn't work like that and it's a very bad idea to do so. Just remember this point.
Good luck0THIS IS NOT RELEVANT ANYMORE