Did I do something wrong? Did I deserve that?

My boyfriend who I loved a lot and we were so good together, talking everyday and making plans for the future, suddenly wanted to break up with me, then he came back and told me that he is confused and unsure and asked me for a one month break and during this break he may get back to me or not, I agreed because I loved him a lot, so I stayed no contact for a month and didn't open my messenger to see if he talked to me or not.. I was very scared and decided that if he really wants me he will call me or send me a normal sms.. after one month I opened my messenger and found that he did text me saying "Hey how are you?" After one week of the break, so I went ahead and started talking to him but he was so could and barely replying my messeges, so I went to his fb profile and found him "In a relationship status with another girl" already! I was shocked and couldn't believe it, when I confronted him he said that we can't be together because of the distance and didn't explain anything, also stopped replying and didn't pick him my calls.. he just left me. Is it my fault that I didn't see his message on time? Please tell me

Ps: I know him in person then he had to travel for studies abroad

Did I do something wrong? Did I deserve that?
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