Hey guys and girls!!! help please!!!! (kinda long)?

Hi. so there is this guy that i have know for a few years and we went out last summer, not very long but it was a good relationship. anyways, we broke up but we have still liked each other and flirt and everything... so on new years, he had a GF but she doesnt live here so he was flirting with me and we hugged and stuff, he dumped her the next day and said he loved me.... he got his texting taken away for a month and then when we talked again, he only liked me a little, then we started talking again and he kissed me and a bunch of other stuff but he said he really liked me but just didn't want a gf yet..... then a week later he has a girlfriend!!!!!

1-should i be mad/sad/ etc?

2-is he a jerk?

3-should i talk to him?

i cant today cuz its his bday i dont wanna ruin it lol but yea

Thanks soooo much!!!! :)