I feel like my best friend keeps making me feel stupid?

[Tis Meee]

It's always small things she does.

Example: I write a status on facebook saying that if you wanted people to respect your culture and beliefs, you should respect theirs.

She comments: why do you care so much, why are you even fighting with people just ignore them.

1. I did not fight with anyone, I just see it around a lot on my facebook.
When I mentioned this, she's like well just ignore it, it's not your problem.

It really bothers me when she does that, what do I do?
She just makes me feel as though I caused the problem, and I really don't like fighting with others, I get guilty and extremely depressed for months on end.