That's what friends are for?

Could you all do me a huge favor and listen to the song "that's what friends are for" Yes a seemingly lovely little ballad about friendship that plagued graduations for decades until it was replaced by that awful vitamin C...anyway, the song goes on about friendships and being there for one another, the duet subtly indicates that men and women can be very much plutonic...But after this long sweet ode...suddenly a sarcastic "yeah" as in "yeah right".  It makes the whole song seem like a joke!  So is it that friendship is a joke or perhaps that men and women actually cannot be friends!? OR since it's the man who says it, is he just going along with the friendship but really wants more???? OH THE POSSIBILITIES