An old textgrab for Yzak Relationships from some artbook. I also don't seem to have a source scan for this and have vague recollection of taking a phone snap in Kinokuniya of this page so I don't have the artbook itself, but if I ever find it I'll edit it into here.

Yzak/Dearka - inseperable relationship (but in a sense of like, could not sever ties even if they wanted to/a kind of stuck with forever sense)

Yzak/Athrun - This one is literally a "calling him a bastard type of relationship"

Yzak/Lacus - Lmfao a deep yearning admiration here (it's akogare). Might as well just say "simp" for this one.

Yzak/Gil - Trusts, but for the time being.