Dating an 27 years old boy

A girl
It's really hard for me to explain how I feel when we are together. I feel so safe and loved. The problem is the age difference i'm 18 he is 27. But i am not the kind of girl who can date a real man he is just like me so funny and I don't feel like dating a man but a boy. Please help I don't know what to do I have other problems like school and i just wanna be with him not something very serious. What should I do? Should I dump him? Need you advice!  Thank you ! x