Okay so during this summer i went to Mexico, my cousin told me to go with her to her cousins birthday party, which i knew when we were little, So we get there and we greet each other, so then for a whole month me and my cousin would go out with her everyday to the fair that they had in town. We would always talk and be next to each other. I knew she liked me but i didn't want to tell her i liked her because i was about to leave and come back here to Texas and i didn't want a long distance relationship. So one day we went to the park and we sat down and we started to talk, She asked me who i liked and i told her no one, and my cousin had asked me the day before if i liked her cousin and i told her yeah but not to tell her, but i knew she was going to tell her. So i told her you already know,, my cousin probably already told you, and she said yeah but she wanted to hear it, so i told her i liked her and i explained to her that it would be hard to have a long distance relationship, and she said she know and wanted us to try it. So i said yeah, so i stayed for a couple of more days and then she threw me a party for my birthday and her parents were there and her parents know my parents and they liked me. On the day i left they woke up her and her family went to say bye to me at 3AM and her dad told me that she would take care of her for me. So i came back to Texas i got on facebook and she told me that her dad told her that he wants me to be the Father of her kids, and i was like okay?. And so we kept talking over the phone for hours everyday,but then when school started again i started to see other girls here and i would try so hard not like anyone else, but Unfortunately my feeling changed for her. And i do not feel the same for her. So i was going to just break up with her but i didn't want to hurt her feelings, and i didn't want to look like an asshole to all of my family in Mexico. So i asked my brother for help but he didn't know how because she was so close to the family, and so i asked my mom for some help and she told me that she will disconnect the nationwide calling and the internet so that i couldn't really talk to her anymore and as time goes on she will forget about me and so i said okay. So i told her that my mom disconnected the phone and internet and that we couldn't talk anymore and to go on with her life and be happy, and like a saying says "if you love something let it go, if it comes back to you then its yours" So she said its fine and that she hope i live a happy life aswell. So after three months of not talking to her i get on facebook and i notice she added my cousin from California and she is telling her that we are still going out, so I'm like what should do.. but i leave it alone, So then i notice she tagged me on a photo and the photo was of a tree with both out names carved in it. Im like :/ What should i do? , but again i left it alone. I still haven't talked to her,
But two weeks ago my dad left to go to Mexico and he barely came back home Today. And he told me she asked about me and that she sent me something and he gave it to me, so i open it and i find a bracelet and an envelope, so i open the envelope and it has a 2 page letter front and back. And so i read it and she tell me that she is okay and tells me about what she's done, and then she tell me that she got her visa this December and she's learning English, and before i came she told me that she might go to the US. Then she wrote a song she dedicated to me and then she tells me that she loves me and that she will always love me and that she hope to see me soon and tell me all that face to face and then she tells me that she is very grateful of meeting me and that I'm very special to her and that i i have her whole heart. And then she tells me that she prays that we will see each other again and that we will form a family and be together for the rest of our lives, and then she tells me she love me and to take care and that she love me and not to forget it.
So yeah I don't know what to do......

Not sure if I caught this right but the girl you used to date is your cousin's cousin?

Anyways It seems you have 3 options

1) Continue to date her.

2) If you don't like her as much as she does to you, then tell her. Just do if softly. You family in Mexico would probably be fine with it as everyone goes through relationships (maybe not inter family relationships) but nonetheless just do it softly. Honestly she sounds like the overly attached girl friend... Only in real life. Basically break up with her,(if you need it/if she needs it)a reason could be you don't want to date family as you don't believe in incest.

3) Kill yourself (Im kidding)

GO WITH NUMERO DOS

Not sure if I caught this right but the girl you used to date is your cousin's cousin?

Anyways It seems you have 3 options

1) Continue to date her.

2) If you don't like her as much as she does to you, then tell her. Just do if softly. You family in Mexico would probably be fine with it as everyone goes through relationships (maybe not inter family relationships) but nonetheless just do it softly. Honestly she sounds like the overly attached girl friend... Only in real life. Basically break up with her,(if you need it/if she needs it)a reason could be you don't want to date family as you don't believe in incest.

3) Kill yourself (Im kidding)

GO WITH NUMERO DOS

Tell her you love her.
Don't wait to show her how you really feel about her.

The thing is i dont love her or have any feelings for her anymore