How to know if the next relationship isn’t a rebound?

I’ve always been love bombed in past relationahip. Things always went way too fast and I confused love with lust. I just went through a bad breakup of 2 years about 2 months ago but I’ve been mentally broken up with him for almost half a year. I met a guy recently and he wants to take things slow and I appreciate it. I really do like him but I don’t know how to recognize if I’m viewing him as a rebound or not. I don’t want to hurt him like that.