The changelings have been reformed. Many ponies are hesitant to accept them due to their sinister past. Twilight converses with Celestia and Luna about the proper action to take after Chrysalis's defeat. All three are met with differing opinions.
After attaining what was seemingly impossible by making a friend, Thorax returns to his hive with feelings of love and hopefulness, but is quickly reminded that his newfound opinions and feelings aren't well-respected in the slightest.
Starlight Glimmer likes to overthink things. Love is probably not one of the things she should overthink. Or approach as a task. Thorax will be in her sights for the next few days, and she's not sure if she can confront both of their feelings.