To start with, just to confirm this is lighthearted 
I have had a few over the years:
- wore a yellow coat. He looked like a banana with 90's sunglasses
- would burp and then declare he was 'bilious' 🤢
- had clammy hands, it was like holding hands with a damp sponge
All were passion killers, and the second was enough to whip out the divorce papers. Reader, I married him before he turned into Steptoe! (Couldn't put that on the application form but came close 
)