I broke up with my boyfriend only 9 weeks ago and I just found out that 2 weeks after we split, he started seeing someone new. This girl he is now with has known socially since march this year and I found out they had been spending more time together (he later told me he had developed feelings for her towards the point of our break up - we hadn't been working for a long time).
Then, after only a month of being together (6 weeks post break up) he declared his excitement online about flying to her home country to meet her parents. (The post was not intended for me to see but I came across it nonetheless). Now it seems they're almost living in the flat we lived in for the whole year we were together, sleeping in the bed we choose together. I am devastated - I feel I have been replaced with someone who is the total Opposite of me. Although Our relationship fell apart because of compatibility we were very close until that point. We had no contact after we broke up. I am very hurt by this. Is he rebounding? Or is this normal for a guy?