I guess we have different views of trust, I've been cheated on twice in long term relationships, that were a complete waste of 5 years of my life combined, I think I have the right to make sure who I'm dating is trustworthy.

You obviously can put blind trust in people, but everytime I've done that it doesn't work out, so I now I just make sure that there aren't any reasons to be nervous.

Try being lied to by people you have loved for years, blatantly lied to, and see how trusting you are after that.

It doesn't even cause a problem, my SO knows that I have trust issues and is perfectly fine with him explaining himself, he has done things that my exes did before they cheated, and he understands why I would be wondering. He hasn't even been annoyed by it, he just understands that not everyone has had "perfect" experiences in the past.

Life is too short to waste your time blindly trusting everybody, you get screwed over if you don't look out for yourself, and again, I don't look on his phone, I just want to know that he is comfortable with me using it, so I know he isn't hiding anything.

I'm more of a 100% open type of person, I have nothing to hide, and I expect people I'm with to have nothing to hide, if I love you, there isn't a whole lot that you could do that would make me not love you, so really anything personal I'm not going to judge you on.

I'm really non-judgmental of peoples personal interests/ how they interact with others.

But say 5 years ago, I would totally 100% agree with you, and it is a breach of "trust", but some people just don't have a reason to blindly trust people. It's unfortunate but true.

My SO goes out with gay people all the time, goes to gay bars, goes out with his friends, I'm really not a hard person to date, and really am not super suspicious, I'm relatively trusting, which is why I think I've been cheated on so many times.

My ex saying "I'm going to the gym" didn't raise any questions for me, or "I'm going to the bar with my friends". So I'm really trusting, I just don't like them being secretive with their phone and facebook, that is just a giant red flag to me, what could you be hiding?