Once Bitten, Twice Shy, by Great White.
Two hair metal-adjacent bands in a row? OK, yes. That happened. Not every song can be Wilco or Dylan or The Band or Fleet Foxes, though many of these songs have been those songs.
This song is indeed another cassingle-grade issue from the late 1980s, if I recall correctly. It’s fun, and I’ve always liked it, and Last Christmas reminded me of it.
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I didn’t get all the piano parts, but I did some on the second guitar (acoustic with Garageband effects, because it’s late for electric, and the dog is not a fan, and she is calm tonight.