In all honesty, I really wouldn't read that much into it! Naturally if I was the ex it would of course hurt and the natural reaction would be to think I meant nothing to him and he dumped me because he wanted someone else BUT after being in a few relationships I have come to understand some things about guys: They generally don't like being "alone." They like having someone around whether as a casual fling or as a girlfriend! Men get over break-ups differently. Girls tend to do the crying and the moping and the self-pitying stuff and move on when they have dealt with their feelings! Guys tend to get over break-ups by just not thinking about the ex! They just move on but that doesn't mean that they have moved onto someone whose better or the right fit! They just carry on... so if I was the ex I would try not to dwell on it! Leave him to it! You need to look after yourself! Concern yourself with what you're doing NOT what he is doing especially when you really have no idea what is going on, how their relationship is or how he feels! So what? You see them together and they seem happy! Well that was you once too and look what happened? Women see what we want to see and usually that is to the detriment of our own well being! We have a tendency to get some pleasure out of torturing ourselves when really WE DON'T KNOW WHAT IS GOING ON IN THE LIFE OF OUR EX! You owe it to yourself to be ok and to not care!
Clearly you feel betrayed and used. You feel that you have been treated badly. And you are angry. All this is because you are looking at the situation in an incorrect way.
You seem to be a fabulous girl and you have done a lot for this guy. This guy did not appreciate you and did not know how to treat you well. And now he has lost you. (Even if he comes crawling back to you one day, I am sure you will not want him.)
So, think of it this way: His relationships will always end badly since he is a selfish guy who does not know how to recognize a girl who treats him well. You know how to treat a guy well and hence with a decent guy you will have a happy relationship.
Only thing you need to learn from this is how to recognize and separate good guys from jerks.
i know so many people who break up with theregf/bf and then the next week or two he or she has another. Its not that they were tired of their ex or anything like that they just have to have a girlfriend or boyfriend. Just a thing people have that makes them feel special.
He could have liked the other girl while he was going out with you and he didn't want to cheat on you so he breaks up with you first and leaves it a couple of weeks and then gets with the other girl. That's only one reason it could be though.
This happened to me last fall. My ex became distant and didn't want me around then he broke up with me because he didn't have feelings for me anymore. We had been together almost 3 years and as soon as it ended there was a new girl who he had met just before his behavior changed. After I found out about her I got some distance from him and stopped contacting him for a month. He ended up dumping her 2 weeks after I stopped contacting him and came back to me. She was just a rebound, someone who he thought could give him what he wasn't getting from me but later realized his relationship with me was much more fulfilling.