Thanks! Though I don't quite see how Jack was insulting Bitty!
Oh, playfully, teasingly so, but it is definitely there--
Jack to Bittle: (after the crash) "I guess you're looking for extra checking practice, eh, Bittle?" (Very 'Brah' (brotherly) satire--especially as Bitty has a horror of being checked by mean opposing team brutes on the ice)
and
Jack to Georgia: "We should get going and let Bittle here
text about his walk to class."
Meaning: Bits is probably going to keep texting while walking regardless even after the little accident. Further Aside: Bittle has had some awkward moments when his teammates/frat brothers have discovered that Bitty has been (though good-naturedly) non-stop Vlogging (video blogging) and texting about his teammates' thoughts/comments/activities--to
strangers.
HOWEVER: It's also clear that Jack's fondness for Bitty has become VERY apparent--

We do too, Georgia!
Tee hee! Even Mickey and Minnie!
(Look at their gloved hands making a heart!)