So did she know he wasn’t going? What kind of excuse would he give his wife to have her go to his Christmas party and let him stay home????? If my husband said he wasn’t going...I wouldn’t have gone without him.
Maybe she was going to meet him there. He never showed. She figured out Maria was not there as well. She went home and found them at her house.
It could be just that simple.
I figured she went while he did more cleanup. Being at the party was her alibi for Dec. 15th. But why wouldn’t they both go and have an alibi for at least the 15th?