I think what causes a person to cheat on their signficant other is that they are no longer confortable in their relationship with the person so they end up cheating on them because they don't have the guts to break up with them because they dont want to hurt the person they are in the said relationship with. Another factor is their gf/bf doesnt please them sexually yet everything else about them pleases them so they go to another person hoping to keep what they have with their partner and get their desires on the side.
   

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Dear Diary,
"Ginny, listen..."  "I can't be involved with you anymore. We've got to stop seeing each other. We can't  be together." These words constantly replaying in my head. The proof that I Ginny Weasley once dated the boy who survived the dark lord.  My life hasn't quite been the same since I lost Harry. I loved him since the first time I layed eyes on him and I even still loved him after he broke my heart the first time.  I lost the love of my life and now my heart feels so empty! I understood Harry was trying to protect me to contiune being the "savior" of the magical world but did he even care what I thought? Where was my choice? I think honestly the opportunity of dieing is worth it as long as I have Harry with me.  It probably was for the best though I felt so alone even if I had him with me. Harry was always worrying about destroying Voldemort and hardly about what was in front of him.                                                                                                                                              "love's a bitch"-Ginny

 

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