I know you said that you are not Catholic. But the Church holds that someone who commits suicide is, well, effectively operating under diminished capacity. That there is some form of mental illness at work. And given that, that we cling to the mercy of the One who sees-and understands-all.
I know that it has been a while, but you have my sympathies on your loss...
Rachel
"For the time will come when people will not tolerate sound doctrine, but, following their own desires will surround themselves with teachers who tickle their ears. They will stop listening to the truth and wander off to fables." (2 Timothy 4:3-4).