My OH has sold his business today (hopefully) and will be taking early retirement the beginning of April. He says that having him at home will be like Valentine's Day every day

I, wait to be convinced of this. I have very mixed feelings about
:
a) being married to an old codger whose retired. (I am not that old, I've just had a hard life, honestly)
b) having him around all the time. he might want to know why I spend hours on the computer in the day as well as at night, for instance.
c) going on little outings to the garden centre and to the supermarket together. OMG, spare me please.
Any advice, or shall I give in and buy a plastic rainhat and get a perm?