He never wanted the estrangement between them, she was the one who left the company because he was crossing a line with the fuel. He’s delusional about a lot of things, including thinking he could bring her back into the fold somehow even after screwing her over legally. I imagine he had also invited her the previous year to the “cruise thing” Whiskey mentioned.

This time around, there was a lead time of several weeks or months for the construction of the invitation boxes, so the order was already placed long before the murder. After the murder there would be no reason to cancel Andi’s box delivery, perhaps he wouldn’t have even thought to try.