If she makes you feel bad about yourself, you could try talking to her about it but if this isn't something you feel can be fixed, you could try spending less time with her and finding someone else to spend your time with-- or find an activity to fill your time rather than hanging out with her.
The longer you stay together with someone who makes you feel bad- the more resentment will build and once that dam breaks, there's no going back.
It's hard to lose a friend but it makes things easier fi you can find something to replace her whether it be a hobby, a new friend, a job, a club-- just something constructive to take up your time so that you don't spend your days alone. The more time you have alone, the more you will think and the worse you will probably feel about yourself. You shouldn't feel bad about yourself!
There will always be people who act as your friends- selfish people who care more about themselves, who do whatever they can to make themselves look good and feel good.
It's unavoidable- these people are everywhere.
The best thing you can do for yourself, in my opinion-- is to be open about how you are feeling with your friends, family, partners, the people in your life; and just be honest.
Do things for yourself and learn to love yourself even if there's no one around to love you. Be okay with being independent.
If someone is making you feel inferior, they may be doing it on purpose or they may be completely oblivious to that fact.
Talking is the key to turning the situation around in your favour by either finding out that they really are two faced-- or that they really care about you and want to change.
Only talk if you feel comfortable with it and try not to be effected by what other people say.
I even opened up to her, told her that her teasing hurt me, but she didn't care. I finally got rid of her this past year. And I've felt a bit happier since.
