I’m sorry. No offense.” That’s Debra Messing’s character apologizing to Dermot Mulroney’s character for the thousandth time in“The Wedding Date.” “Do me a favor, quit apologizing,” Mulroney retorts, “If you look at this as a business transaction, maybe you won’t feel compelled to keep saying sorry.” Messing: “I’m sorry.” Mulroney: “It’s aIso really annoying.” Messing:…