Ratburn's "special someone" remained a mystery throughout the episode until he walked down the aisle with his future husband, Patrick - a friendly Aardvark, much like Arthur - who was introduced as a local chocolate seller earlier in the episode.
The group of chums grow more anxious when they spy Mr Ratburn having lunch with an uptight woman.
But it was revealed that Patty was actually Mr. Ratburn's sister, not his fiance.
Musk shares look of SpaceX's first Internet satellites
As one Twitter user noted in response to Musk, six additional launches of 60 satellites comes to 420 satellites total. But based on recent events, the CEO admitted it might not be his lucky number anymore.
Sunil Ambris ton helps Windies make record chase against Ireland
At that stage, Rankin provided a window of opportunity for Ireland by prising out Ambris with a delivery that climbed awkwardly. Gabriel was the pick of the bowlers with two wickets, while Cottrell, Holder and Carter chipped in with one wicket apiece.
The Moon is shrinking: NASA study
Resembling stair-shaped cliffs, the fault scarps are tens of metres high and extend for several kilometres. This was close enough for the team to conclude that the faults likely caused the quakes.
Arthur and his gang of mostly recognizable animal friends show up to the wedding ready to object, but when they see who Mr. Ratburn is actually marrying - not to mention how happy the couple appears - they decide not to sabotage their teacher's big day, after all.
People took to Twitter when they learned about the episode - but many were sharing their disbelief that "Arthur" was still on the air.
Believe it or not, the animated kid's series Arthur is still going strong on the air. It comes not long after Teacher Appreciation Week in the United States, when Arthur PBS tweeted a form encouraging pupils to nominate their favourite teacher, giving its own example of Mr Ratburn.