Competent black cat FMC meets dumb blonde golden retriever MMC who’s just excited she acknowledges him

Saw an ad for a book that hasn’t been released yet and it made me interested. I’m looking for books where the FMC is cool, calm, competent, sort of “ice queen” who’s very good at what she does (preferably has a high powered job in military, law enforcement/lawyer, corporate executive, etc). The MMC is just this absolute golden retriever who loves her immediately while she just completely ignores him, and he’s just absolutely giddy when she acknowledges/talks to him, a total awkward bumbling mess around her. Bonus points if something happens to her and he turns from a golden retriever to just this dark, angry entity intent on hurting anyone who hurt her.

I don’t like bully romances (though I can’t imagine there are a lot that fit my request) and I prefer standalones. I’m not a fan of super complicated fantasy series (it gets too confusing and I lose interest) or hardcore BDSM. Anything else I’m pretty much good with