You may not able to control every situation and its outcome, but you can control your attitude and how you deal with it.similar to what I say a lot.if you can't change the situation, the only other thing then that you can change is your attitude.
Looks like she got all that she needed and wanted out of me but not really- the loser is the user- Not the one who fell for the fakery and lies- Users fake friendships to get what they want from you -sad and shameful to say the least
Don't hold grudges with the people close to you, especially over petty, insignificant things. Suck up your pride, apologize whether you're right or wrong. Don't leave angry and don't go to bed angry. Life's too short.