I don't plan to see it, but it seems like a gay remake of Same Time Next Year.
Homosexuals will embrace anything, no matter the quality, as long as it portrays gay characters and gay situations in a positive light.
I recall it had a limited release, and then it got released in more theaters, supposedly because of the great demand to see it. I think this is all marketing hype. Motion pictures have marketing schemes just like any other product. I think the producers are trying to hype the film by creating an impression there's great public enthusiasm for it. It wouldn't entirely surprise me if the company handling the release asked theatres to say it was sold out as part of the deal, even if it wasn't.