men over 30, why is he single?

hey guys so i recently started talking to this guy whom is 34. as of right now we are simply just friends but i am somewhat interested in him, the timing rn is just not right for both of us because we both each just got out of a 2 year relationship. i understand the reason as to why he is choosing to be single atm because of his crazy ex but im curious why he hasnt settled down sooner ? lmk your guys opinions thanks in advance