Q4All: is this "the right" thing to do?

Assume you attend a hobby class, and a new person of the opposite sex joins in. Friendly, non-confrontational, not a problem person. In three months, this person approaches you, gives a small goodbye gift, and says that due to a developing crush on you that by all hints seems to be non-reciprocal, they decided to leave the class and do something else with their life, and it's better that you two don't meet or talk again.

Obviously, your reaction would depend on the situation and how much you liked this person (who knows, maybe you're just really bad at giving hints),

But basically title.

I was thinking of making it a Q4W, but who knows, maybe guys here also have a couple stories or opinions.