i feel so lost

so my story is a bit of a downer and i think im asking for validation on whether or not im the asshole here. im in my early 30s and started doing this little thing awhile back with a guy who's a couple years older than me, hes more experienced and into dom stuff which was kinda cool at first. we'd meet up every once in a while and he would sorta babysit me? not like actual kids but like i act younger sometimes when im stressed or tired and it felt nice to have someone take care of me. last week we got into a bit of an argument about something small, nothing major but it escalated quickly because hes really direct with his thoughts and criticisms. he said i need to grow up and stop acting so immature all the time. that hurt like hell but now im questioning myself too - am i just using him as some sort of substitute parent or babysitter? what kind of adult am i if i still want someone to take care of me when things get tough? its not like hes mean, he cares about me a lot and wants whats best for both of us. but now i feel even more lost inside, unsure if im crossing any lines or being childish. am i the asshole for having these needs as an adult? am i overthinking this way too much?