Both had the BDSM thing going on.
Here ML is the Ceo of the company, meets the FL at base when she just lost her beloved Dog. She abuses him and he gets hooked on her asking her to abuse n treat him like a dog!!

Like: Same instant fast paced romance.
A bit of creepy element, secret affair..in this case a secret marriage..
Different: FL is not innocent but provocative and ML is a bit wishy washy.
But a distant call with love phantom...