My partner is on holiday and owns his own place. His friend who he is also on holiday with lives with him too with his girlfriend (temporarily for a year and they're moving out in a few weeks)

My partner does most of the cleaning tidying around the flat and the other 2 don't often help or pull their weight.

He wants me to go to his place tomorrow morning to see if she's had a party there or had people stay over and is worried someone might have slept in his (our) bed.

I said if happily do it but please don't drag me into any unpleasantness if I tell you something has gone on.

I'm now having second thoughts, I'm just scared incase someone IS in his bed, or the place is a total mess etc

What what you do?