On 'Mike and Molly' (Mon., 9:30PM ET on CBS), the couple hasn't been dating very long. But when Molly meets Mike's police partner, she gets a glimpse of what he's like in a long-term relationship.

Mike says they've been partners about four years. His colleague begs to differ. "We've been partners for almost five years ... Do you remember the day in November?" Mike replies sarcastically, "Well I'd have to check my diary."

His partner suggests he tattoo the date on his "eating hand" to remember it. "You guys sound just like an old married couple ... you know, the way you do the little back-and-forth bickering thing," chuckles Molly.

Both men say it's just "male camaraderie" like Batman and Robin -- but that launches into a debate over who is Batman and who's Robin.