Me...wiping my ex’s bottom while he was simultaneously sick on me in hospital after nursing staff were so busy they had left him alone for over an hour desperate for the loo! I had previously worked in a care home so I just got on with it but it did take me a couple of days to force the images from my mind 
Another ex I drove all the way from Exeter to Birmingham at 12am to drop off his ‘lucky socks’ for a presentation he was giving the next day. I was 22 and had work the next day. Chances of that happening now are nil!