How can I break up with my boyfriend?

We were kinda quick with the relationship. Didn’t give the chance to know each other that much before going out. It’s been 3 months now and I kinda lost my feelings towards him. I realized that I didn’t really like him but liked the idea of having a boyfriend. We have nothing in common. My friend says that you don’t have to have something in common but really we don’t have much to talk about and lately our relationship has become all about making out. I kinda feel like he’s not that interested in me as well and doesn’t want to spend time with me that much. We are in the same college and in the same friend group. So if we break up it can be a problem but I really am not happy with this relationship. How should I break up with him? What should I say?

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12 d
The reason he wouldn’t want to break up even though he might feel the same way is because he is not that “wanted” and even believes that me liking him was a miracle and that if we break up he will be single forever cuz nobody would want him
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12 d
This is the first relationship both of us got into
How can I break up with my boyfriend?
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