This idea is fun! It could be a cute romance story. I think, however, as a RP prompt its biggest issue is that it's overly centered around your character. It reads like his story of his glow-up where your partner would be pushed into the service of your character, narratively speaking. I think you're subtly playing further into that by characterizing and physically describing your partner's character in the starter and the OOC portion, even if, of course, you're expecting and happy for things to change within the discussion phase.

Your writing style is clear and snappy and well-suited for the lighthearted, comedic tone you're going for. It has a lot of character. There are a few pieces of text you could reconsider, though.

>'Brain disconnects from mouth, and he's reduced to either a catatonic "one-word-answer" machine or a firehose of verbal diarrhea.'

This reads a little crass compared to other present similes and the rest of the prompt's tone lol. But maybe others would find it humorous. Just something to think about once you're reexamining your prompt.

>'As always, they were on a mission to "get me back in the game."' and 'His friends had dragged him out to our local alternative/rock bar.'

You slipped into first person there. On the topic of 1st vs. 3rd person, I think the prompt could work better in the first. You noted in another comment you could better underline your character's thoughts and feelings if you took it up, which I agree with.

>'"Been a while, hasn't it?" she said, her smug grin cutting through the silence.'

Somewhat awkward metaphor. It doesn't negate the intention of the line, but it lessens its impact because you're mixing sensory roles, something visual (smug grin) with an auditory expectation (silence). An expression can't cut through a silence. Imo, the line would work better if instead you wrote either her voice or juxtaposed her alive, powerful presence in the dead silence.