You're the sole concern of my heart right now ; I've been stalking you all NEN (年= YEAR, pronounced 'nen')
"That's too bad." - kind of informal ; say this when someone didn't enjoy a movie they went to, or couldn't come to your party because they got the flu.
as a precaution, in case something goes wrong.
a memorial, an anniversary of something good , like marriage or a band's anniversary gig. Or something you give your friend to remember you by.
My face includes a MOUTH for fast-food snacks, but I'm concerned I might get a HEART attack.