everyone has their own space but he gets offended because he likes to spend more time with you, give him time and make him understand that friends are an important part of your life too

I want you to understand that this is a sign of a controlling partner, and usually it comes from insecurity and anxiety. He is not doing it because he hates you, contrarily, he hates himself and doesn't believe that he deserves you. You could agree one night a week that you could go out with your friends without him, and maybe once a month he can hang out with you all too. You need to set boundaries, but also understand where he is coming from - he is deeply scared of losing you. Come back to him and share the great things you got up to with your friends. With time he will learn to trust you and he will relax about you having some time alone and he will even enjoy finding his own things to do. If that doesn't work or he gets abusive or violent, don't be afraid to walk away. Good luck.