Friendships

I do not want to sound like i am this mean horrible person but I want a certain person to be miserable. Let me explain, i had to end my one friendship that i had left. Yesterday i saw her at subway and she was with some of her other friends laughing and having a good time just one day after i ended our friendship. She did not even look like she missed me at all. It just made me wonder if we were even friends to begin with. It was only after i started lending her money that she never paid back and after i started letting her use my pool that we started hanging out together. I am such a fool for thinking someone might actually like me for me. What is wrong with me that no one wants to be my friend? Am i that bad to be around? I wish i could be like everyone else cause it seems like everyone else is able to make friends except me. Thanks for listening. Love you and i will talk to you soon.