She probably said it more sarcastically, then actually meaning it...

Yikes.

Scars make you look badass.

She is probably jealous. Just ignore the bitch.

like wtf?

we might have the same mother - that sounds like mine!

How small a scar? Vanity might be one of those flaws.

it kind of sounds like she was kidding..

that happens if you whine up about a scar

this does not sound like an FML, tbh

This is not an FML. There's a popular saying you simply must not hear too often, but it goes pretty much like what your mother said. The idea is that everyone is different because of their flaws. If everyone was perfect we would all be the same. The differences, the flaws, shape and define our character and uniqueness. It wasn't anything mean she said (I think).