Found: Mystery novel that I need to know the title of!!

So this mystery novel I'm looking for was about this girl who's daughter goes missing and it breaks her heart causing a divorce. Fast forward years later and she's still missing her daughter. She decides to get back into the dating scene and meets a guy who's super sweet. She meets his daughter and his daughter looks exactly like her daughter who went missing years ago. So she's basically trying to figure out what the hell is going on. Anyways if anyone knows the title please let me know!

There's some overlap with What Was Mine by Helen Klein Ross, but it's a bit of a long shot.

And Then She Was Gone by Lisa Jewell?

Yes!!