Am I being used for sex?

[cyelknip]

So I havent seen this guy in 1 mo he was in rehab. Which I didnt know so I was texting him really upset about how he never called on valentines day, and a whole bunch of other stuff ive been really upset about and i was upset cuz i hadnt heard from him in a month. He starts calling right after my first text and he called like 20 times but when i dint pick up he text me and all he said was do you want to have sex yes or no then i said id like to see him and talk to him and for him to come over in 1 hr he text no now so i said a half hr and he came over and he didnt even bring up what i was upset about or anything he just had sex which he cummed really fast and a whole lot and then said he had to leave cuz it was late and he has to get up early for work and then said what are you doing on friday and i said i dont know and he said call me then he told me he was in rehab for a month and hes trying to stay sober and he left was i used for sex? I didnt call him on friday because im not sure what to do. He use to tell me he loves me all the time before he went to rehab and now he acts like this. By the way I have always been sober so was i used or what else could be going on?