Good stuff so far
..But sometimes I think we should maybe just answer the damn question also; how do you get somebody back after hurting them - regardless of this particular situation.
In general, apologising profusely and meaning it, and/or some kind of extravagant gesture, the details of which sadly only you can really know since you know the person.

that is a pretty simple concept, so unless you are one of those people who believes that there is one magical yet effortless thing you can do to win them back, I don't know what you're asking us exactly. I think it's good that you told him, I suppose there must be a temptation to simply never speak of it.

You say he loves you, as if to say 'If he loved me surely he would get back with me!', but think about it; he may well love you, but ALSO not be able to forgive you- those two feelings are not mutually exclusive.
It sounds to me like your relationship had problems before your kissing thing. When you felt he was ignoring you, did you tell him this clearly? the point i'm making is, you can't justify your actions by saying your relationship was faulty, if you didn't even try to fix that relationship first.

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