Let's say that you decide to continue. I think that you should get advice from elsewhere than here, from someone whose professional expertise is in the emotions.

Before everyone leaps to conclusions, I'd better clarify - I am not saying there's anything wrong with you - I am not excusing the crass behavior which is getting you down.

What I'm saying is that there are almost certainly skills you can learn which will stop this getting to you. I don't know exactly what they are, and most people here don't either (although they will passionately sell you the hammer which worked for their particular nail). Ask an expert.