I hope one day you will realize I did truly care for you. I promise you're gonna miss me being there, putting up with you, refusing to give up on you. but you'll miss me when I become priceless to another. (Please read the entire quote.
"Top 12 Signs It's Time to Move On From a Relationship." If these 12 signs are 12 things you try and bury in your mind everyday, it's time to rip the bandaid off and move on. This goes for both friendship and romantic relationships
Never beg people to stay in your life. There's no point of holding on to someone who has let go of you. Move on, and try to understand their goodbye was a gift. They didn't deserve you, and God has someone better for you.