Lets just go to sleep for a few days.
(Seems like we made it worse by mentioning the random memories.)
+1.
Had I gotten here earlier, I would have said to also tell her she now has a chance of getting Alex back, if we can figure out some way to retrieve all his memories/soul. Of course, we'd need another body to house him, so we'd basically need to recreate his work on transferring souls - wait. Es Esme can transfer memories, right? If we get access to all of Alex's memories, couldn't she just siphon them into her mind, and have Original!Alex's personality/soul timeshare with her brain?
You lay down in the cot and have piecewise sit at your side. You order him to protect you from any sort of harm and wake you if something important happens. That done, you set your mental alarm clock for three days and pass out.
You are in darkness. Nothing around. You feel the currents ebb and flow, unseen things moving past. You float, thoughtless. Light. Distant, far above. Something huge, but far away, like a star at night. It is descending, a comet dropping to Earth. Phantoms scatter or are devoured by the light. You look down and see a great temple of concrete and steel burning. In its light you see yourself, but not yourself. You see a dozen yous in different clothing, watching the fire.
You wake up like someone flipping a switch, going from unconscious to completely awake in an instant. You sit up. Someone has placed a blanket over you. Piecewise is still sitting, though he's closer to the foot of your bed than before. You appear uninjured and the room is as clean and empty as before. It seems nothing has happened, at least to you. You're not sure if you should go upstairs or wait for Esme to come get you...