Am I just being naive about love?

Ok so my first relationship recently ended pretty painfully with her cheating on me and her telling me she hasn't actually loved me for the last 2 years of our relationship. I keep thinking about moving on and I have to wonder if I'm just looking for the wrong thing. I realize love isn't like some fairytale; you don't just fall for someone and everything is just always so perfect and there's never any problems, but still I want someone I can just really devote myself to. I want someone I can trust, someone I would do anything for; really when I think about it, what I want is to be able to tell a person anything, to give them every weapon they need to hurt me, have them give me the same, and neither of us ever using them, I want that level of trust. Part of me realizes that's an insanely stupid idea and wants to kick my own ass for thinking it, especially considering how badly my last girl hurt me, but another part of me doesn't care. For whatever reason, in my mind there's nothing better than being in love, I'm not happy unless I'm making someone else happy. I don't know if I'm just idolizing something I can't have though, I know that love can't solve all but I still feel like I can't have a good life without it. People keep telling me I shouldn't trust a person like that, that I should be a lot more cautious and restrictive with my feelings, but I don't know if that's being realistic or just cynical, honestly I have almost no experience with the real thing.