Yes helped our relationship and No we were married 27 years and raised three kids before getting a tandem so we knew each other pretty well without the tandem.
We like it so much we rarely ride singles anymore.
Of course we in this forum are self selected as those who's relationships benefited. Those that didn't probably don't ride very long and aren't here to answer your question.
Last edited by waynesulak; 03-30-12 at 03:24 PM.