Is it me or the LIFESTYLE??

I have found it very hard to trust gay men around my age. They lie, cheat, steal, and defraud. I have very few friends I can trust but other then that I find it very hard to move forward with others that come into my life. Some times I even find it hard to trust my own boyfriend, he even lie and cheat me, I just don't get it. They show you the good side until they feel like they want to do other things or they can not get what they want out of you, is it me or is it this lifestyle I've been living?