You cannot tell by looking. Many non-asbestos products look like asbestos and asbestos itself appears very differently in different products.
The only safe approach is to have it tested before disturbing it in any way.
Bite the bullet and pop off that last column of tiles. It looks like its only 11 tiles. It'll take just a few hours and you'll be so much happier if you re-do it right.
Any kind of band-aid will always look like a band-aid and you will never be happy with it.