No, everyone can deny it all they like, but being attracted to someone is vital for most folks in order to want to be intimate with a person. The level of attraction they have to feel depends entirely on the person, but few people will date somebody they aren't attracted to.
Unlikely. Unless you grow to find their outer shell attractive too, which can happen when you fall for someone. But if it doesn't happen, I can't see it working well long-term. More or less, attraction is is important to all of us, even if some of us don't like to admit it.
hate to break it to you but its very unlikely. When you break it down we're all animals and our primal instincts tell us to reproduce, nowadays thats difficult if you dont find them physically attractive. If you love someone but aren't attracted to them sexually then theyre more like friends right?