At least that's what the results of a new survey suggest.

The survey asked people who've had affairs where they met the person they cheated with . . . and it's going to make you worry about everywhere your lover goes.

30% of people who cheated met the person they did it with at WORK.

29% reunited with an old friend.

9% met them traveling.

8% met them online.

And 7% met them at school.

The other 17% met the person they cheated with at some other place . . . which includes everything from the gym, church, or even their own wedding.

Come on!  Their own wedding!  Say it ain't so.