Feeling torn about whether to move on from this dating phase due to my need for healing from past experiences.

I've been seeing a guy who's 19 for a few months now, and everything seems great on the surface. We get along really well, have no arguments, and communicate openly. However, he recently told me that he's not quite ready for a more serious relationship, like spending more time together. He mentioned he's still worried about healing from his past relationship. This leaves me in a tough position because I’m unsure whether to continue dating him or to walk away now to avoid potential heartache in the future. I genuinely like him a lot, but I also know I need to prioritize my own peace of mind. I'm really conflicted about what to do next.