Hi Cath! Sounds interesting. I think we're missing a lot of specific information though that it seems like you're hinting at like does her new love hate adoration? And has she dated or been in love with women before? You don't need the name of the app in there either. You can simple say something like, "While researching her latest role on a lesbian-dating app, a middle-aged rom-com star meets a woman who makes her question her sexuality, and her career." But that's me guessing at what your story is about. We just need more specific info in that vain :)

I see your point. Backstory: she gave up dating women when her star began to rise in straight rom-coms. She sacrificed heart for career and now that decision/belief/lifestyle is being tested. So...

A middle-aged rom-com star who subsists solely on audience adoration because she turned her back on her sexuality uses an app to research modern lesbian dating and falls in love. She must redefine what love and career mean to her before she loses both.

Is that better?

It's definitely more clear, yes, but it's still a bit long. You just need to find a way to make that all one shorter, contained sentence now :)