Hi,
It's a good idea for a RomCom but needs a few tweaks.
Firstly, grammatically it needs changing. You end one sentence and then start the next with 'until'. Really there shouldn't be a break/pause here, it reads incorrectly. It needs to flow, reading as "...on the ski slopes until...
Secondly, I think a disenchanted accounted is fine, but bored doesn't really fit. If she's bored wouldn't being thrown into a dashing celebrities world be exactly what she needs to shake things up? Maybe if she was shy or a complete ball breaker that would be better.
Finally, you could reduce the word count to make room for better explaining the celebrities motivation. You say it's to stay on top. What do you mean by that? Is he a fading celebrity hoping the accident will help relaunch his career somehow? Does the accident make headlines? How will a bored account solve his dilemma?
Maybe something along the lines of:
"A disenchanted accountant collides with a washed up Hollywood star in a skiing accident making national news, leading him to try and use the situation to relaunch his failing career against her wishes"
This is something I just scribbled down and needs work but gives you an idea of what I'm thinking.
Good luck.