I thought the plot about Keeley and Roy was the best part, it was at times very romantic and taught a good lesson, don't let your frustrations bottle up until you have a big outburst of anger.
Ted's story progressed somewhat but I don't enjoy his banter with his therapist, and this goes to what I think would make this season better. If the actors were allowed to have more energy and emotion. If we let Ted pull back his façade somewhat and have more of a nasty tone to his voice, the therapist could have raised her voice some as well and really let Ted have it.
Also I have to criticize Nick Mohammad, I think he needs to really go mental and let the viewer enjoy a difference in character, if he is going to play a Jekyll & Hyde, his Jekyll side if you will is going to need to be louder and bolder in its arrogance and narcissism. When he goes up to someone to be cruel to them, Nick should be standing up straighter, with more of a intense glare and use the insults the writers are giving him to drive home that something deeply disturbing is brewing up in him. Take an actor like Alan Rickman for example, he just raises his venomous voice as Snape 10 decibels and its like the entire world is shaking.
Imagine if during the ending, Nick put himself into that menacing level and the kid at the end, his face was ashen pale with fright, then the viewer felt sad for him and suspenseful about where this plot was going, then I think the episode would have been yet another 10/10 for Ted Lasso.