vague implication of love; could be I Like You or I Love You. Used in text messaging instead of typing the whole thing out.

when you're hungover as shit after a spending a night drunk as a skunk

means i love you :D and ilu2 means i love you too!

I
Love
YOU!

Acronym commonly described as "I Love You," but just as easily interpreted as "I Loved You"

When spoken pronounced `ee-luu' or `ai ell yuu'; typically an abbreviation for `I love you' or some a word that begins with `L'. (eg. `like')

i love u
one of the many ways to say i love you in text. less meaningful than texting i love you, ily, ilysm, etc. more meaningful than texting ly