hi Sunny,
that is very corny, but it is also very kind.

your T shared how difficult it was for him to take tests, which some might see as a measure of his abilities, but when it comes to what is really important -- how he interacts in the T relationship -- you told him how good he was. no test needed.
he probably kept it
im sorry you were laughed at for expressing your feelings as a kid. and good for T for helping you be able to be corny... A+ for both of you.