He teased me when I was carrying the suitcase upstairs.
1-For him, that is kindness.
2-That is kindness for him.
(Meaning of 1&2: He thinks he is being kind.)
3-From him, that is kindness.
4-That is kindness from him.
5-That was kindness on his part.
6-On his part, that was kindness.
(Meaning of 3,4,5 &6: When he does that, it means he is trying to be kind.)
Are sentences 1, 2, 3, 4, 5&6 correct with the given meanings as a response to the initial sentence?
(Although 3, 4 obviously means that the attempt came from him; 1,2 could mean that the attempt came from someone else, and he considers it kindness.
5, 6 means he was being kind.
But I'm not sure what difference you see between "He thinks he's being kind" and "He's trying to be kind".