cant get enough!👀

hello everyone! I have some questions and a little story. so I'm 21 and have been sexually active for quite some time and have only found three people who are my equals in different ways. I'm currently evolve with one of the three people its like I don't have to ask or say anything he knows and its amazing! he's amazing, but I'm not satisfied sometimes. I've always felt this way so I know its not him. I'm not exactly shore why but I think I may be addicted to sex! What can I do to cool it down where I can think and how do I tell my partner without embracing myself or seeming greedy?