I would have voted for selfish, cowardly and probably wrong as well if I could vote for multiple options. I've known people who contemplated it, even talked someone out of on two separate occasions.
The world can be a cruel place to live sure, it can be lonely, it can be painful but pain is what makes us human. Letting your mistakes or your situation get the best of you helps nothing, its just an easy way out, thats the definition of cowardly. Forgetting and forgiving the past is just as important as learning from it.
This idea that only the "godless" kill themselves though is ridiculous, people need to understand the difference between correlation and causation. maybe more blondes kill themselves than brunettes, does that mean being blonde causes suicide? of course not.
if anything, the religious should be more prone to suicide since, after all, this life is only a holding area to them right? see how pedantic these kinds of pernicious ideas are? its hyperbolic and irrelivant to the discussion at hand. I'm an athiest and I think suicide is cowardly, I can recall at one point honestly wondering about it, and deciding right there that since this is the only life I get, and life is so rich and diverse it would be a veritable crime to snuff it out over anything temporary.
change is an inevitable part of our existence, it is how we handle it, cope with it and how we change for the better and learn from the past that makes us who we are.
/endrant