Miles Granger had bought the last lot at the end of the road and built his house towards the back, lining the front with evergreen trees and bushes. Once she cast the muggle repealing and unplottable spells nonmagical beings would think the road dead-ended into a foreboding forested area they wanted to avoid. When she retreated to Black Island she would create a portkey to bring her back there when she was homesick. Not quite what her parents intended but it seemed unlikely she would get the chance to fall in love and have children while she was alone in hiding. Perhaps once Voldemort's people calmed down. Or Neville, she considered before rejecting the thought instantly. She simply wasn't attracted to her lanky friend.