I really don't think it's helpful to tell the OP that 'maybe she isn't listening enough.' This is quite possibly the sort of attitude she is referring to when she talks about some christians' behaviour not matching up to the values of being a Christian.
I think we all go through times when God seems to be silent, a blank wall, and sometimes people gradually lose faith, sometimes they find that the silence was in the end a strengthening factor. But saying that someone is not listening well enough is akin to telling someone they don't have enough faith when they are not healed. It's wrong on many levels.
OP, I am sad that you have felt this loss of faith. It sounds to me like you almost long for what you had. I can empathise with this, there are times I've been through when I wonder where God is, if God is there at all, and it's been a slog, but something in me has inspired me to keep going, keep choosing each day to believe - an act of will rather than a feeling. I've been experiencing something of this in the past few weeks, in fact, and just beginning to come out of the black hole and experience something of God's presence again. I have no idea why this happens, there could be all kinds of theories - tests of faith, us not praying enough, etc etc, but I actually don't go with any of these. I think it just happens, sometimes, and then there is a cold hard choice to make.
I do fervently believe there is a God who loves us passionately and it has been my experience that again and again God somehow brings it all together, makes it all make sense in a way that is undefinable. I hope you can find your way back to something that sustains you. When I have had these times of faith seeming to ebb away life feels suddenly very cold, but then I find warmth again in God and God's love.
So sorry you've had bad experiences with christians. People get it wrong, all the time, but it's no excuse I know.