I think in terms of what's sexual and what's not its all in the delivery.
A look can be sexual, a passing graze of fingers can be sexual, even a slight body language movement can be sexual.
As SC mentioned tho, all of these thing can be neutral as well. Kissing and cuddling is a different dynamic for all. For example, kissing, to my SO, is a precursor to foreplay, to me it's just a small act of intimacy, a reminder of affection so it is.
Is it safe to assume that every time partners looks at each other it is not going to be of sexual connotation every time? Sometimes there's just a gaze to remember and study. Commit to memory.
It's just me, my ramblings and the elevator music in my head.
Me: bi, reformed wild-child turned mom and house maid LOL
Crux: straight/hypersexual, possibly mono?
BC: our son, 5 years
CM: second son 9 months.
Mouse: girlfriend! Status new, feelings not so much.