Live and Let Live - S2.E13

Bonnie's older Vicki shows up with a much younger boyfriend, and when Bonnie, Mark and the gang are fed up with them showing their effection even if it is on ""Morning Chicago"", He asks Bonnie not to tell Vicki that he's on the show he's going to ask her a question, Bonnie thinks he's going to propose marriage but it's a relief that he asked her to go out on the road with his band.