It's too bad when someone does that and doesn't say why. I've had that happen to me sometimes too. Suddenly a friend removes me from a list without saying why, so once I hung myself on a limb and asked why...wish I hadn't but I hate not knowing.
When you know someone and even confide in them it hurts when they reject you for being who you are. I'm afraid that won't stop me from being myself though. Much better than pretending to be someone else!
(End of empathetic rant, for now.)