I did some winter camping with my father in northern MN as a youth. I enjoyed that.
My X and I did a bakpack trip in the Rockies, near Denver in mid-April. Found ourselves in a late season snow storm. Our mummy sleeping bags were rated for below zero, OK there.
Then I made a big mistake. I buttoned up the tent tight. Bad bad bad. The moisture from our breath condensed on the inside of the tent and it started to rain inside the tent and soaked my-X's sleeping bag. Two people in one mummy sleeping bags was no joy. A planned 3 day trip turned into an overnighter and I heard about it during the hike out. Is it worth mentioning that the last time I went backpacking with her?
While I am at it backpacking with The Princess the first time was much more entertaining. I noticed her struggling a bit during the 7 mile hike in. I took on some of her load to finish the hike in. When were setting up the camp site, the first thing she did was CHANGE HER SHOES!
Now to close
The last time I did a solo trek, I pulled a groin muscle about 7 miles into a 11 mile hike while stepping over a log. Decided to tough it since the camp site was closer. Bad bad bad. When I woke up I was in serious pain and had a 11 mile hike in front of me. No cell phones back in the mid 80s.
It took me 6 months to fully recover and started buying real estate so I never tried another solo.
1) don't seal up a tent in winter
2) check what is in your partners pack before you start
3) groin pulls do not get better overnight
Ben