Was it something I didn't say?

I'm having a mental freakout. I've replayed this weekend's events over and over in my head. I've seen where I may have missed a few signals -some good, some warnings- and basically, where I may not have come off in the best light. But it's too late to do anything. I realized that I may have been guarded. That I didn't give away a lot of information about myself- probably for fear of divulging too much. And because of that, there's a lot that now remains to be known and I may have come off as distant. For the first time in a long time I wish I could do something over. Sadly, I can't. I hope that maybe in the future I can redeem myself. I'm not sure if the door has been closed completely. I hope it hasn't.