Real or fake friend

Well the first situation you've mentioned gives me the sense that she is inconsiderate, even if she was not well off a handmade card would be expected. The second situation doesn't really give me much since a lot of people do that. So I can't give a definite conclusion unless you give me a but more specific situations. But she is leaning towards mean from the first

The things really make me feel worse like ik she is from a welloff family but i was just expecting a card but i got nothing but at the meantine she was there to give a lot of things including cards to her other friend but why not me when i do so many efforts

Well it sounds that she doesn't care for you at all so she's unfortunately probably a fake friend. She's probably stringing you along. I'm so sorry for you. No one should have to go through that.

What should i do then?

I'd recommend slowly distancing yourself. Don't confront her it'll just bring you more trouble. So during lunch maybe excuse yourself, try not to meet up and block her on social media. Try keeping conversations short and concise and try to be more 'professional' instead of friendly.