Desperate to know how this episode came out

Okay, your question gives very little information, but I have a theory. I think you are thinking not of the original series, but of the 1998 revival of the show. One of the last episodes did feature a wedding. Lauren Holly played a girl whose best friend was marrying someone that she felt she should have married. Roarke allowed her to go back and change her history, but she came to realize the man should really be marrying her best friend after all, so Roarke put things back the way they were. Now, what was causing the confusion for you was another plot about a tabloid reporter following Roarke around. At the end, while waiting for his plane to arrive, a spaceship came by and abducted him. Then, they were showing Mr. Roarke playing a chess game against himself and he stepped into the room as two other characters as well. They showed the reporter in outer space howling in fear, then the Fyvush Finkel character reading a tabloid about the reporter being abducted. He said, "Who reads this trash?" and tossed it in the garbage. Then they quickly did the executive producer credit and broke for commercial. You probably thought they were coming back to fix it up, but they weren't. That was it - end of story. The tabloid reporter was punished by becoming a tabloid story himself, and the bit with the multiple Roarkes was just head games nonsense. So, if I'm right, you really didn't miss anything.