Ending versions: spoiler alert, winner is 4 in my verse.
#1
He walks in the door, bursting with excitement! He runs to her and grabs her up in a deep embrace.He knows that these things are solvable and wants to choose her and only her over and over again, in this life and the next. They embrace, and fuck, and live happily ever after.
#2
He walks in the door, buzzing with excitement from his interactions. He talks to her about her night and his and they go to bed quietly on the outside, but on the inside, the cogs are working overtime.
#3
He comes home apologetic that he lost track of time and explains fervently the situation that distracted him from messaging on time. Knowing he could have done better, but hoping to stave off her disappointment or anger that was surely brewing.
#4
He walks in and she makes a sound to let him know she is up, he sighs out loud. She's sitting in the dark at her computer and doesn't look up. She is too afraid to see the ways in which his body rejects her. He says hello, and they go back and forth a few exchanges about end of the night shop talk. He heads for bed after she says she's not and she is invisibly emotional. He asks if there is anything else they HAVE to talk about, and not wanting to upset him or lie, she says no, because he clearly does not want to talk like a couple would after a long hard day. They part ways. She is upset at the obvious shove away from connection. He is oblivious, and ready for bed.