Aye dude seriously, they probably think you are gay. If they think that then odds are they are always going to be nice to you, and somewhat forward as they believe there is no risk in being flirtatious with you.

Dude honestly I think you are being wayyy to nice to them if you want to go out with A. Girls often consider guys like that good friends yet they won't go out with them till their mid 20s. I'm guessing you are arond 16-18 and girls at that age do not go for the really nice guys. But don't be a jerk by all means.

For the record are you trying to buy them or something? Just honestly getting nice watches for 2 people who are just friends is not only costly but it comes accross to me as being somewhat desperate and needy. No offense intended.