Sympathy = Romantic?!?

Grandma does not drive and is not computer savvy so I do her weekly shopping and have it delivered.

She asked me to add a sympathy card to her weekly delivery because her neighbor passed. I picked out a nice box of them so that she would have them in the future.

Fast forward and I get a message from the app saying the box set was not available so was substituted.

Why did the shopper think that a romantic birthday card was an acceptable substitution for a sympathy card?!?

Needless to say I declined and drove one over to her instead.