You take a hit sometimes doing this but imo it's growth enabling to deal with it... albeit difficult.
I did this recently with an acquaintance online who was very frustrated over something out of my control but I was the target of his frustration... shoot the messenger type scenario... I responded calmly and did not get angry even though I felt the negative energy he was directing my way.
My reasoning was that at a very high level of understanding there are no positive or negative experiences it's just here in meat suit world I have a nervous system which makes me feel a certain way. But this realization allowed me to detach from the feeling somewhat and endure it. Like watching a car wreck instead of being in it.
He later apologized and I explained the above to him. He's still miffed but we joke about it now. He's a cool guy just we all spam sometimes ๐