What's the opposite of holding a grudge?

[CrayonInThreeBits]

If never letting go of slights is referred to as holding grudges, what's it called when you'll always remember a kindness someone did you? Surely there's a word for it?

Unfortunately you've confused me too but then, it is 2am here.

The reason I thought of it is that I have an acquaintance/friend who occasionally does annoying things because he's a bit flaky, but a couple of years ago he did a really nice thing for me that he didn't have to do. So whenever he does something slightly annoying, I can't get too pissed off at him cause I remember how he did that nice thing for me once.

When I posted, he'd just done something which would've irritated me, except that, as has happened before, my reaction to that is very softened by the fact I can't forget the nice thing he did for me. And I realised that this is very much like the opposite of when you hold a grudge against someone — you can never forget that they were the person who did such-and-such a bad thing to you, and it colours every subsequent interaction you have with them, so that minor irritations become really annoying.

If I Google grudge definition, I get ^a persistent feeling of ill will or resentment resulting from a past insult or injury.
"I've never been one to hold a grudge"^

So I guess what I'm thinking of is something like "a persistent feeling of good will or gratitude resulting from a past favour or kindness". Something like that. There should be a word!

Italics fail

Remembering a kindness. Or, if you have forgiven someone who transgressed against you - letting it go.

A pp said forever in your good books. That works, no?

Kind of? It doesn't have the same extra nuances of meaning that "grudge" has, which explains both the feeling and the reason for it (going by the googled definition I posted upthread), and it refers to the other person, rather than the person with the feeling, so there's no equivalent of "I tend to hold grudges". But in some circumstances it would sort of do, I guess.