If he said he'd never thought about it, he'd be lying. It's not unjustified with his past, with the daily self-worth struggles he faces. In fact, he imagines everyone in their 'so called' family has thought about it at least once, and he assumes Bruce isn't exempt from that either.

See, when you've died horrifically, been resurrected, dug your way out of your own grave, taken a dip in a Lazarus Pit, done some intensive training and come back out scarred enough to follow a path of solely rejection, it's hard to come out 'fine'. When your own 'family' tosses you in jail, or hunts you down, beats you to a pulp, it's hard to think of someone as caring. It's hard not to become lonely and start thinking negatively of yourself. Why shouldn't you when it's evident everyone else has? And hey, they're Bat's right? They base everything on evidence.

So yeah, he's thought about suicide, on more than one occasion. He's contemplated how he'd do it. He is armed to the teeth, finding a way out wouldn't be difficult. Besides, he jumps across so many rooftops it would be easy just to miss right? Yet he's never actually attempted it.

So he understands people who don't want to live. He understands why they do it. He's been to that dark corner too. He won't judge them for choosing that route. Sometimes he stumbles upon a suicide and wonders if anyone would care if it was his body on the ground broken and bent and drowning in blood. Other times he wonders if their decision was worth it.

He's already died once though, so he thinks that's enough. It was horrific enough the first time to be enough for him. And maybe he's messed up his second life too, but at least he's alive, getting a second chance that he can try to do better in. That guy who overdosed on Maple Street last week won't.

He also knows that there is a chance he could fail. He's seen that happen before, and it leaves the heavy weight of the attempt on their shoulders. They are left with the burden of knowing they 'failed', of having their loved ones know that, and think about that, and worry about them, treat them carefully. It left the scars deeper. He's seen how much of a struggle it is to hold someone up after they've stabbed themselves in the chest hoping to end the suffering, to wake up and know it's still there, if not worse. To have everyone think they can and try to help you, to think you can give up on the idea now, when really you're still desperate to try.

He doesn't think he needs that extra failure hanging over his head, weighing on his mind. Now, he knows he can live, find happiness in little things, and be strong, for the one who carries that burden instead of him.