I'm ill, I'm cold, I'm cuddled up in bed with my purry hot water bottle and I suddenly started crying about how much I loved her. Then she licked my tears and I cried even more thinking about what it's going to be like when she dies.
She's 6 ffs.
I'm 42 ffffs
She is the bestest most beautiful cat in the whole of the known universe and beyond. Of course. Sometimes I just look at her face, and her perfect whiskers, and THOSE PAWS 
I'm ridiculous. (When I typed in I'm, the next word it wanted me to use was 'Single'. Which I am. Probably because I'm over invested in my cat. Did I tell you she has the cutest little heart nose?)
Get a grip - YABU
Get another cat - YANBU