I'm by your side
While your mind is with someone else

You pretend that it is not like that, but I know that I'm not what others were, maybe I'll never be that important to you.

I know how much you want to go back with her.

My heart breaks every time I think about it

I opened my heart and I don't want to make a mistake again.

(If you have someone at your side that you know is worth it, your partner, a friend,VALOR IT) It hurts so much that while he or she is with you, you are thinking about someone else, wishing to be with someone else , it causes a lot of damage, and yes, sooner or later they will notice it and they will get tired.)