Why would my college professor tell me he would give me his number but on my last day at college.........?

Question

SERIOUS answers only please.
but he still told me to keep it "secret".
He is not married, he is 27, single,
the other professors would even acknowledge me that
he is not married and has no girlfriend.
Why would my prof. tell me that ?
Would it look bad even if he gives it to me on my last day ?


p.s. I understand why not right now, because it is unethical,
but why should it be kept "secret" even if it's my last day that he does give it to me

Answer 1

Because it's unethical any time you're a student, and you could potentially be in his class. If you want to be above board, you need to do one of these things:

-- change majors to a different department
-- transfer to a different school
-- graduate.

Anything else is probably against the university's policy, and he's risking his job.

Answer 2

Teachers dating former students and current students looks REALLY bad, and in some states it's frowned upon greatly.