No.

[ His eyes meet Jonathan's and there's a stony expression on his face as he makes his statement with more weight than is probably necessary. The implication of actually hurting Giorno doesn't sit right with him. ]

I didn't hurt him or anything like that.

[ Sure, he doesn't like Giorno but he wouldn't intentionally try to hurt him – hell, he was the one who tried to get him away from Purple Haze. Abbacchio is big, he gets in people's faces and personal space, he pokes and he prods, he makes threats he has no intention of keeping. But it's all posturing. Unless Giorno was an active threat towards them nothing ever would have happened.

Quietly, he sips at his tea again in a miniscule effort to settle the rising anxiety that's tugging at his nerves.

It's easier to go along with the belief that Giorno dislikes him, for whatever his own reasoning may be, than the alternative. The idea that Giorno holds no contempt towards someone who was only ever actively hostile in the time they knew each other – maybe Abbacchio is looking at this all wrong, were their roles reversed he wouldn't have given himself the time of day for his behaviour, he's used to being treated unfairly. But that's on him. That's how he sees the world, to assume others do the same is foolish. ]

I just… I don't understand why someone would forgive me– or not even hold it against me in the first place.

[ Maybe the real crux of the matter is being incapable of forgiving oneself. ]