Sex with my SO use to be amazing. We had sex all the time and still do! But I dont finish anymore. It has become all about him all the time. I usually give him head for awhile to get him turned on amd stuff then we have sex for like 2/3 minutes and its done. I do all the work for no pay kinda thing. I have no idea how to talk to him about this. We are so open about everything but im having trouble with what I should do..