Michael Ealy, left, and Kevin Hart are wiser, but maybe not more mature, in “Think Like a Man Too.” (Sony Pictures Entertainment)

In 2012’s “Think Like a Man,” the comedy came from four men battling it out with their girlfriends, with Steve Harvey’s book “Act Like a Lady, Think Like a Man” as the playbook. In “Think Like a Man Too,” out Friday, the same group of friends finds out what happens after happily ever after.

“When we finished the first one, there was really no thought of everyone coming back,” says Michael Ealy, who returns to his role as Dominic, a struggling chef paired with his wildly successful girlfriend Lauren (Taraji Henson). “It was like, ‘this is it, OK, bye bye!’ When the opportunity presented itself to do a sequel, the question became, where are Dominic and Lauren now? What is the next challenge?”

That challenge (she gets a job offer in New York; he gets one in Las Vegas; they live in Los Angeles) plays out over a Vegas weekend that combines the bachelor and bachelorette parties and wedding of Candace and Michael (Regina Hall and Terrence J). Led by the worst best man in history (Kevin Hart), the group engages in much debauchery, but no one enjoys it much.

“Unlike other bachelor-party movies, we don’t have a lot of fun, and that’s interesting as an actor,” Ealy says. “[It’s hard] to be part of a bachelor party and not enjoy yourself [because you] have your mind stuck on something personal, [but] still try to be there for your boy.”

The film’s major conflict is less about men versus women and more about the couples versus new circumstances. “It’s really about what do we really have, and is it worth fighting for?” Ealy says.

That fundamental change made the film more attractive to Ealy than if “Think Like a Man Too” rehashed the same issues laid out in the first film.

He probably would have done the film anyway, though. “Any time you’re able, and I say blessed, to come back and do a sequel, it means one of two things,” he says. “First, your first movie did really well and everybody wants to see the second one. Two, if you can get everybody back for the sequel, you should have success. To me, that was a recipe for repeat success.”