I think when we don't feel good there is a better chance of misunderstanding what others are saying to us and why they are saying it. "Do what you want" can be said in anger or frustration because the other person isn't getting their way (not my problem) or it can be understood as being about me and who I am when it is the other person who is saying it (what other people say is ALWAYS about them, not you).

Other people can only love and help us so far because it is our life when all is said and done. Sometimes we forget that and try to make other people responsible for us and how we feel or our behavior. Others may make a suggestion and we shoot them down, ("That won't work") or decide to do something different and they may hear that they are useless because we asked for something, they felt they gave, but their gift was ignored. That's one way one can hear a disgusted/frustrated, "Do what you want!" I know I give my husband a hard time sometimes because he asks me to pick a route to a location and navigate and I do that and he starts in with the, "why aren't we going this way?" Hello, you asked me to pick the route is why we're not going that way! Do you want my help navigating or not?

Suicide does not "help" anything related to this life. We cannot know what is coming down the pike 10 minutes into the future much less a day, week, month, year, years. Responding to current problems by disengaging from life instead of working to solve the problem or painstakingly untangle it is like cleaning up a messy kitchen with dynamite.