I desperately need advice.

I met my boyfriend almost two years ago, and our relationship was kind of a slow simmer that came to a boil. he’s the perfect match for me. so funny and kind and we have almost identical interests. like literally husband material if I wasn’t 18. but he’s my first ever boyfriend and I really feel like I need to experience other people, not because he’s not good enough, but because I’m a sexual person in nature and feel the need to have different experiences before dedicating a significant amount of time to one person. but I’m so afraid to break up with him and lose something so so good for nothing. I’m also afraid to talk to him about it because I don’t want him to think that it’s because there’s something wrong with him and have it change out perfect dynamic. do I wait? do I talk to him anyway? I’m stuck