Did Mara win over Buddha?
No, the Blessed One renounced his will to live-on on his own volition since the bhikkhus and bhikkhunis, laymen and laywomen, have come to be true disciples... just like the paragraph says. It's not like Mara could've done anything about it, had the lord said no.

Enlightened beings feel hunger, taste, smell and other bodily sensations caused by contact as long as they have functional sense doors. But they do not get sexual feelings as it requires lust to play it's part.