I'd say, "X" and "Y" are not your friends, but that is the obvious answer anyone would give you. It would be good if you ignored their attempt to emotionally hurt you. They are likely cowards and would hesitate to harass you in person. If they do so, it would be best for you to not give them a reaction at all. It is not fun to play with someone who does not fight back nor give an emotional response. Don't text back to them, despite what they say. Remember, these people will likely stay at a psychological conventional level for the rest of their lives. (A self-centered person who does not give future consequences much thought). I hope this helps, and sorry if I did not understand what you were asking or looking for in an answer. Good luck!