The big plot on the home front saw Alex and Maggie celebrating their engagement with a wedding shower.
In fact, he stormed out of the party as soon as he saw Maggie kiss Alex.
Maggie decided the time had come to try and reconcile with her homophobic parents, and she invited them to the shower.
The conversation between father and daughter that followed may have dropped a clue that something big was changed in the Supergirl timeline that hasn’t yet been revealed.