Super enjoyable fake dating enemies-to-lovers story in the same universe as Part of Your World, which I read last month. The lovers are ER doctors Briana something and something WASPy that starts with a J. J has social anxiety, and Briana is super cool about it. J is otherwise perfect. Both have recent exes, but J's is worse because the ex (Amy, I think?) feel in love with his brother a few months after their breakup. Or Briana's is worse because her ex started hooking up with his new chick while he and Briana were still married.