On illogical guilt

Can someone please explain why my brain feels the need to produce guilty-conscience-feelings for vacuuming so noisily during 5 minutes of DB’s TV programme (which he was dozing through anyway), whereas his is perfectly content to relax so lazily through my cleaning???

It’s not as if I mind him lying on the sofa, watching TV while I vacuum, he’s ill (again), and could use the down-time…it’s just my thought patterns I don’t understand.

If you have any ideas, please throw them my way!