There are certain reasons why your partner would not want to receive your call, not reply your text messages or even reference any effort made by you to make some contact. The first reason is that he/she wants to be alone to really think over issues, sort things out and finally get some emotional stability. You find out that because of the emotional trauma caused as a result of the heart break; he/she becomes so depressed and frustrated and wouldn’t want to see you or hear from you so as not to revive the bad experience.
Let’s say you are the one heart broken, how would you feel? Definitely angry and bitter. if you truly love your partner; you would wonder why you were treated in such manner, you definitely deserved more than such harsh treatment, therefore, you will be mad at the situation and hurt, wondering why such could be happening. You will be disappointed by the approach and conduct of your partner and wouldn’t want to see him/her again because you hold him/her responsible for the break-up.
If your partner still has feelings for you, it could contribute to the fact why you are being ignored. In order to forget about you and the bad experience, he/she would want to stay away from you because any close contact with you will trigger the soar condition surrounding both of you and this wouldn’t make things go well. Your partner could be dating some else just to let you know that he/she doesn’t have you in mind anymore and has moved on for good. If that be the case, it is definitely not the end of the world. You too just have to move on.