dating advice

I'm extremely inexperienced when it comes to dating . I have been single for the past four years afte rmy boyfriend passed away and we were together since we were fresh out of high school so we didn't really date the relationship kinda just formed . I had a situation this last year with someone who was never ready to commit and now I'mfinding  with dating almost every guy is like I don't know what I want I'm not looking for a relationship bla bla . I met someone I'm interested in but he told me up front his last relationship was a disaster and he isn't sure what he wants . Would I be stupid to even explore it because he told me from go how he feels ? Are most men just on the fence about being vulnerable I just feel like I'm clueless