“With his series of Beach House mixtapes, Ty Dolla $ign reintroduced grown man sleazeball R&B to a younger generation. Ty likes short-term relationships with built-in escape hatches: he’s always seducing some other guy’s lonely sweetheart, orchestrating a booty call, or just demonstrating he can’t (or won’t) commit to someone. These conditions create songs like the YG-assisted “Ex,” from the upcomi”