Too Broken For Steve
Tony stood in front of the mirror in his personal bathroom, door locked, tears streaming down his face. He had done it. He'd told Steve everything. /Everything/ there was to know about the real Tony Stark. He had told him about the depression, the cutting, all five of the suicide attempts, everything. Steve had said it was "too much for him" and had promptly left and said he was never coming back. Tony had ordered Jarvis to shut off all the phones, lock every door and window, and to make sure no one could get to him before locking himself in the bathroom.
Now he was standing in front of the mirror, full bottle of sleeping pills mixed with OxyCotin in one hand, a new razor blade in the other. This time, he knew he couldn't fail at killing himself. He had at least three sure fire ways to commit suicide.
He had turned on the water in the tub and filled it to the brim. Tony popped the top off the pill bottle and swallowed a few handfuls before the bottle was empty. He let the bottle roll into the sink.
Tony gripped his razor tightly and walked over to the bathtub. He slipped easily into the water and settled into it. He turned his left arm over so the vein was facing upwards. For a moment, Tony stared at all the pale white scars that marked the skin. He placed the blade at the crook of his arm, right over top of his vein, and slid it down all the way to his wrist and back. He kept going back and forth, up and down his arm until he was sure it was deep enough. He did the same to the other arm and by the time he was finished, his eyelids were heavy as lead and the water had turned deep red.
Tony knew there was no way in hell anyone could possibly save him or even get to him before it was too late. He smiled as his blood drained out and was still smiling when he slipped into unconsciousness. He slowly slipped under the water as he slept. It took only forty five minutes before it all killed him. The drugs, the blood loss, and the drowning had killed him. He had drowned in his own blood in the end.
He was found the next morning by Bruce. There had been a note posted on the door. It had read; 'I can't live without Steve in my life. It's worthless without him. Tell him I'm sorry I'm so broken. Too broken for him. -Tony'