Room and Board (гет)

When Severus Snape wakes after the final battle back in his own home with an unexpected guest, he faces a pivotal choice.
OR
Severus ends up renovating basically his entire house as his life becomes entwined with one bushy-haired witch.
***
His knees knocked under him, the grip on the sink tightening with a hiss as his legs protested holding him up much longer. Damn it all to hell.
There was no way he was going to be able to manage undressing and getting into the tub without blacking out in the effort. Quickly, Severus had to negotiate which was worse - asking for help now or it being demanded later when his unconscious body fell to the floor, likely traumatizing his former student further.
“Miss Granger…” he began, voice ragged, “I can’t… do this alone.”