She had been tied to an incubus, the memory of a love that had been rejected and had had nowhere to go; she had been locked into a dead relationship and now the last dried skin of it had fallen away, like the scab on a wound, and she was free.
The protagonist reflects on her past relationship, likening it to an incubus that drained her energy and spirit. This emotional bond, anchored in unreciprocated love, confined her to a lifeless connection that offered no growth or solace. The memory haunted her, serving as a painful reminder of what could have been, leaving her feeling trapped.