She exists, still – part of the Force, as eternal as it is, as powerful and yet limited – and yet, she exists as herself. (The Force shall free me – fitting, really, when the only one who could free her turned out to be herself.)
She doesn't... Regret her existence, really, even as she's passively curious if witnessing the end of everything will finally kill her. It's hard to hold onto regret for several orders of magnitude more years than there are atoms in the universe – and then that entire incomprehensible arc all over again, as the cold and still universe began to contract again, as every thread of the Force slowly became tangled once more. She held herself apart, she always has –
And now she stands here, alone, the rest of the Force an incoherent knot of unrealized potential, and she watches with only curiosity and a strange serenity as galaxies dissolve, as behemoths ignite from the shockwaves, as gas clouds swirl into each other and collapse directly into singularities – as every raging fire tries to push against the coming end – she shouldn't still exist, really. There's no living minds reaching for her, there haven't been for a long time, and even the last flickers of unicellular and then pre-cellular life dissolve in the heat.
The only thing she's ever wanted – the demand at the core of her selfhood – has been to exist, though, has been to be herself.
And so, she exists.