Count Your Lucky Stars by Alexandria Bellefleur

Margot Cooper is perfectly content with casual flings and being the last single one in her friend group… until a wedding venue tour throws her back into the orbit of Olivia Grant—childhood best friend, first everything, and the one that got away.

Olivia never expected to see Margot again, let alone become her housemate after a housing mishap leaves her stranded. Margot insists it's just a friendly favor—definitely not because the old sparks still fly between them.

But as close quarters turn into late-night talks and lingering looks, Margot starts to wonder if her no-strings rule is really protecting her—or just keeping her from what she truly wants.