person x is not a very close friend of person y.
it was not person x's birthday.
it was not person y's birthday either.
it was a normal day. (i.e. no ocassion)
but still person y insisted on treating person y to some very tasty food from a certain canteen in a certain university in eastern india.
whether person y actually treated person x is not the point.
the point is that it made person x feel very awkward. very uncomfortable. and a little annoyed and freaked.