Couldnt let you go

When i feel the pain inside from you that can never be fixed, isit down and wonder why couldn't i let you go? When i tell you that i love you and you don't say it back it makes my heart feel sunk then i ask myself why couldn't i let you go? When i hear from one of my friends that you are cheating on me, i don't believe them because i know that you would never do that to me, when i do fond out that you are cheating on me i just don't care but then i cry myself to sleep at night wondering why couldn't i let you go? When i lie in bed at night with you not on my side wondering where you are and what you are doing i think why couldn't i let you go? Every second of the day those thoughts go through my head, and the reason that i couldn't let you go is because i love you but i still sometimes wonder why couldn't i let you go?