Yes, well, that does not make me hate it less.
It is also not the reason I promised not to do that to you again, mind. Were you a mere acquaintance, there'd be a very strong chance I would do it again the moment you gave me a reason. Whether I felt guilt for the first go 'round or not.

[Pausing, thinking, letting out a thoughtful little hum -]

Well, no, I suppose the chance would still be slim with you... but only because it's clearly had little effect. Why attempt something a second time if the first had no effect?
It would be pointless.

But, no, the guilt is not why I refuse to treat you that way. I simply feel that you deserve better than that.
You did nothing to earn such treatment, and with how you are, there's no way you ever will earn it in the future, either.