Yeah, this is a tough one. Learn your lesson and walk away wiser for it. I'm very big on not trusting anyone, because I never had anyone to trust (and anyone I did decide to trust in disappointed me), and because the Lord commands me not to trust in men. One only confirms the other until I've built up a hard resistance to trusting people. What ends up happening is that people get mighty offended when you tell them you cannot place your trust in them, and even doubly offended when you tell them why - because they don't believe there's a God - so they think you'd rather trust in some phantom non-existent idea than in them. We'll they are just fools, because God is real and they are in darkness, and they have not one wise bone in their bodies. They cannot see how God proves himself to us every day in the small ways in which he takes care of us. They also cannot see that God is taking care of them by sending rain upon their heads - they take too much for granted.
So, yeah, you confide in someone, you do not trust in them. You share your troubles, you do not believe other people can solve them. You get things off you chest (we all need to now and then, even David had a best friend whom he loved) but your very best friend is always the Lord.
I have made my motto "Woe to the man who trusts in man" so I will never forget that the Lord is the only one to place one's complete trust in. Most people would rather choose a happy, redemptive, constructive verse than what I chose. But if you think about my choice carefully, it is very happy, redemptive, and constructive; it just happens to be a very truthful thing (and to many very insulting) to say about mankind in general.
I've had parents that lied to me, brothers that beat me up, friends that abdandoned me, teachers who hated me, strangers who stole from me, landlords who tried to put me out on the street, celebrities I admired who turned out to be cross-dressers, preachers who cursed me, animals that bit me, bosses who insulted me, girlfriends who manipulated me, etc, etrc, etc. We all go through this kind of stuff, there is a lesson to be learned and many never learn it.
If you never trust anyone, there's no way they can disappoint you, because you always expect the worst. It got to the point where I would meet a woman and I could not trust that she was not a lesbian until I found out otherwise. She could just be hiding it from me for whatever reason. It is a horrible way to have to live but I had no other choice. People are just liars and I simply cannot trust them. I remember telling a friend who thought my view of the world was beyond his comprehension. I said to him, "Every woman is a lesbian to me unless I find out otherwise." "How can you say that?" he asked me. "It's the only way I can protect myself." My friend simply did not understand why I had put up this strange wall of unreasonableness. It got to the point where every guy that came along was a silent-homosexual trying to lure me into his apartment or trying to steal something valuable from me. And this is simply because such things had happened to me way too many times - too many freaks had tried to use me and harm me in the course of many many years.
So, yeah, I learned a very difficult lesson. Was it worth it? You bet it was! I dare ask people nowadays what their true intentions are when I first meet them, and this makes many of them run for the hills. Well, that was easy. Better they run now than I suffer later, eh? Good job. Sinners are trouble. Don't trust anything they say. They are not here on this good earth to help people, they are here to get what they want and blame whatever the consequences are on you.
Take this to heart, it is the truth.