While I in no way believe suicide to be a "sinful" or "selfish" or "cowardly" act, it does have an incredibly huge impact on others. Like, huger than the sufferer could possibly imagine. I compleeeeeetely don't condemn those who attempt suicide (or I'd be condemning myself), but I don't feel a life belongs only to you: it also belongs in some part to all who love you, so no, I don't believe you have the simple right to take it whenever you choose. It is in some way taking part of the life of many others, if that makes sense? I think one does owe others something, though that can be lost when the pain is simply unbearable.
Suicide - what if someone doesn't have 'loved ones' and thus it "won't affect anyone"? Should it be allowed in this case?