How to Deal With Sensitivities in Relationships

I watched a lot of my young friends who were also like me growing up 22 year old, 23 year old men who were sensitive if somebody challenged them too much. Who did not control their sensitivities and I would watch my sensitivity and I didn't not like what that guy said. So slowly I'm like man that area keeps hurting you if somebody challenges you know why is that? Okay why don't we do something about it? But then I watch some of my friends like I cannot believe that happened every single time the smallest crisis would happen flight flight flight flightFlight this relationship didn't work out flight this relation flight this job didn't workout flight every single time. Here's what I