You have to turn away from these two people who are together and not being helpful to your life at all. Concentrate on your course and/or make a tentative plan if you do get thrown out, how to continue learning and maybe get back in that course or another in the future.

Besides those two ex-friends, what is your life about? Your course (to learn what?) and what other hopes and goals do you have? Concentrate on possibilities and ways forward instead of bad things that have happened. Yes, bad things are compelling but nothing, good or bad, stays the same/constant. Think of the bad things like weather; there's lots of rain in your life at the moment but I hear this weekend is supposed to be fantastic :-)