I have a stupid question to ask... Being that my ex left me, and I used to watch porn... I can't stop but think that she went out for more sex and that every there girl has been with many peopl and only care for sex... Why am I thinking like this... It's making me upset that nobody really cares for me or ever will. Any advice?

I think you are finally just realizing that if you don't have respect for yourself then no one else will either and will trample on you like your nothing. No one deserves to be played like that but the world is a harsh one and the only way you can make it through is not letting go, staying strong and most imortantly staying true to yourself.

Get rid of the things that make you unhappy and then you can replace it with the things that make you happy.