Is it a standard to be met?

Is it smarter to go into a friendship/relationship with the expectation of people screwing up or the expectation of a standard to be met? I think I tend to hold people, especially believers, to a certain standard. That standard, however, is something I've created, something inherently flawed. Hypocrisy irritates me. I struggle with it just like everyone does. It erks me when I am hypocritical, but it drives me crazy when other people are. I realize that in and of itself is hypocritical. I guess all too many times I've known believers to say they are one thing and I see another. The people that I like the most are people that in all they do you know they are chasing after God so wholeheartedly you know that's all they live for. It's this idea of being sold out to it; being so totally bought that you strive for it like you do a sprint, even though it's a marathon. These people make mistakes but come back to God time and time again. I always talk about David, especially in Psalm 51, but he is such a great example. I am wrestling with the idea of how I judge people and put them in this box of either they follow God whole heartedly or they are fake believer. I was challenged today by a friend that I don't get to know someone well enough before I think, "Oh yeah, they don't follow God with everything. Look at how they act." I wonder how right he is. Am I quick to judge and slow to listen and love? For the last couple of months God has been showing me new areas of love and how to re-learn to love. Something else He has also shown me lately is my first impressions of people are HORRIBLE. I think over half the time my first impression is smashed and very off. It's irritating because I hate being wrong. My only argument with this whole idea of just accepting that people mess up and not expecting much from people is that Christians are supposed to be held to a standard. They represent Christ. They will not be perfect in that but should strive to do their best. I just don't see that in some people. I see a label they've found and occasionally run to when things fall apart. I just don't see realism in that. A great analogy someone once told me is that a diamond is one of the strongest things on earth. A fake diamond looks like the real thing but try to crush it and it shatters. Try to crush a real diamond and you will have very little luck. I feel like faith is the same way. Real faith stands the test of trials. Fake faith crushes under the pressure because it has no roots. The thing I can boil it down to is that we are called to love and that we don't know a person's heart. We only look at the outward appearance. In the end, what I think doesn't matter. That's reassuring....