Does someone’s opinion affect your opinion?

So I have a very nice turntable with a new MC cartridge which I liked and enjoyed…that is until someone said that the cartridge was very “piercing” and in his opinion almost unlistenable. Now I find I am not enjoying it as much. Two things to add, he is not anymore “golden ear” than me, and the brands are well known with good reviews. 
But now, I don’t enjoy it as much. I know I shouldn’t let it bother me, but it does and it has impacted my enjoyment.

So, has this happen to you and what did you do?