^ Nop, its not funny. I do that too ... but not all the songs. Just certain ones that randomly or maybe meaningfully remind me of that 'someone'.
I dont think music affects my personality in a direct way. I've always been a free-mind person even when I used to be a constant hip hop & rock listener (still listen to them tho ... ). Personality is what you percieve of things constantly and that defines who you are. Music may take u on a journey at that time, but during times when you aren't listening to music ... you may have a totally different attitude.