SWMBO = she who must be obeyed, a.k.a. wife, a.k.a. better half, etc.
A 4F temp rise is normal and about average. When I ferment at "68" that means I set the ferm chamber temp to about 64 for the first week or 2. When active ferm is done the temp will fall to the same as the air around it.
How warm did the fermenter get? Likely you'll be just fine and will never notice anything.
No, you don't keep the overflow. If it came out of the bucket throw it away.