Perhaps I should be asking this in teenagers or similar, but I feel it might get answered by more sympathetic people here 
Have been watching TWW with dd, now 13. We've just started series 7, the Santos-McGarry campaign is well underway, and obviously we've been watching it for months, she's very invested, etc. Problem is that she doesn't know that John Spencer/Leo dies, and I've started worrying about how upset she's going to be!
She was reduced to a sobbing red-faced swollen-eyed wreck for about an hour by the end of How I Met Your Mother, and I'm starting to fret ...
Do you think I should try to introduce the idea that John Spencer isn't still alive now, so at least she knows he's died at some point? Argh. Can't believe I'm worrying about something that happened ten years ago!