there's lots of good reasons for wearing a condom, but at the end of the day they're a bit of a drag. the feeling is different (the old shower in a raincoat analogy) but it's not like you don't feel "anything". it would be interesting to hear what women have to say about this since I know some who really get off on feeling the guys' ejaculation, which they don't of course with the rubber on.
another drag is the fact you have to pull out straight away & sort out the mess - kind of breaks the mood :/
as to your friend - well he's just being selfish.
as to birth control for long-term partners, there are much better options than the pill. (
link )