First and foremost, I know what you mean Jiban. It is always easier said than done. We are all human beings, and we have emotions and once, we find someone we like, we don't want to let go of them. I had the same issue you did, once. And, it was harder for me to understand because I was not living close to her. I would be constantly trying to get in touch with her. And, one day I said to myself that it's all not worth it. If somebody's willing to cheat on you now, they will probably not hesistate to cheat on you later. That said, don't always come to conclusions. We all have our freedom, our space and, maybe she wants to be by herself sometimes. Let her think over it. If you stress your points by arguing with her, she is not going to listen. She will never listen, if you don't loosen up.  Get the point across to her, slowly and steadily. If you think she is having a bad day, let it be. Talk about it some other time. We want people to tell us things that we want to hear. If you really want to be with her, work on it. Let it be. If she's not the right one, this world is yours to explore. You can't force yourself into anything, and neither can you force her to do it. If she really wants to be with you, she'll come to you. No matter what. If she's not the one, be strong and move on.

I changed my priorities. I told her what I felt. Even if you track her down to her every step, it's not going to work out if you are always in-doubt. So, live free my friend! Choto cha jiwan - live up to it! No worries brother. Have fun!