Sorry you've heard those often "stinging" words.
I've not read the other replies so I hope I'm not redundant

....
the way I see it--
if someone says "get over it" or "deal with it" it's their way of saying they don't want to hear any of it. So, I then make sure I don't discuss said subject with that person ever again, unless they ask about it.
I sometimes wonder if some of the others that think like that are actually not very strong and look towards others to keep their "positive" vibes going... if around someone that is not so positive -- they aren't very able to deal with it...... it may speak more about their inabilites than it does about yours.
best to you,
fins