hugs and kisses

I'm so confused...

if  "x" means kisses,

and "o" means hugs,

then why do we say "hugs and kisses"

but write "xxxooo"

???

And why is losing not spelt loosing?

If it's:

" i before e, except after c, and when sounding like a, in neighbor and weigh,"

then why is it Science and  not Sceince?

Weird looks weirder to me than wierd.

I could go on and on

but I'd loose my mind trying to comprehend the Sceince of spelling...it's just to wierd!
(haha! too wierd!)

And don't get me started on Grammar...I'd like to write my own book on Grammer! ;)