There's nothing worse than holding on to someone that's trying with everything in them to resist you. Not only are you being hurt by the one you can't let go but you're also hurting yourself. If someone has made it very clear to you that they will not be with you, there's nothing better you can do for yourself than to let them go. It must be understood that people come into your life for a reason, a season, or a lifetime. Which ever reason they are there, allow them to play that part or the whole script is thrown off and you will take even longer to reach your happy ending. Accept a person for who they are and the role they must play in your life. Trying to force a person into a role not made for them puts everyone in a role they're not good at playing which makes for very sour love story. Play your part and allow them to play their own. Let your story love unravel and enjoy your happy ending already.