Oh god yes, the following around... And the indecision ... the "I don't mind" response to everything - what do you fancy for dinner, where shall we sit, what restaurant shall we go to. I use to deliberately choose a table with an awkward seat for him to get into 
Copied what I did - if I opened my car window, he would immediately open his; if I sang along to the car radio, he would start whistling. On holiday I went onto the balcony to put sun cream on so I could see my reflection in the doors and not miss bits in my shoulders etc - he went and put his on out there too, but clearly didn't know why I'd done so.
Slated people for lack of education and would then get something grammatically wrong himself.
Nail biting, or rather skin-biting because there's barely any nail left after years of chewing them.
Didn't seem able to take a reasonable length of stride; I'd swear his step count was almost double mine. Never tried to walk "in time" with me if we were holding hands. Couldn't bend down easily for some reason - instead of bending at the waist to get something out of the oven, he'd kneel in front of it.
Wore a beige pensioners bum-bag/document wallet type thing on our first holiday.
Whistled as he went to answer the front door.
Took his stuff in an Asda bag for life on a weekend away.
Ick ick ick ick ick 

Fucking hell, that was cathartic!!