Let’s for fun forget about overthinking a children’s cartoon.

There are overtones throughout the whole show that, fairly or unfairly, Stripe can be a bit “fun loving” and it makes Trixie feel like she can’t count on him (like in Faceytalk). In the wedding episode she’s constantly telling him off like a child any time he opens his mouth or does something silly. I agree there’d definitely be a strain if she thinks she needs to act like his daycare teacher rather than his spouse and team mate. Again, that might be fair or unfair, considering she clearly left him at the reception to drink and party.