Should I have sex with my ex-boyfriend?

an

My ex and I dated for about a year in his senior year of high school and my junior year. We always planned on breaking up when he went away for school, but when the day came it was so hard because we still really love each other. Two days after we broke up he made out with an old girlfriend of his. We were out of touch for two months after that and then he and I hooked up 3 times after we were finished and each time except once resulted in a fight because the we really only broke up because of distance. He was my first and only as of now. He's coming back home in a week for thanksgiving and I'm honestly just so horny. I know there are other guys, but I don't want the complications that come with sex and relationships. Is it that bad for me to use him? Do you think sex without feelings is possible? ??? sorry it's confusing