The Shrink by Sophia Karlson

Apparently she’s a bit crazy.
Apparently he’s the shrink who will cure her.
Apparently they aren’t allowed to fall for each other at all.

Stacey Sinclair’s mother died in a gruesome car accident six years ago, and now everybody thinks she is finally losing it. Surely a few crazy actions on her part don’t justify her seeing a shrink for months on end?
For a psychologist, Dr Ivo Linder is too decent, too caring, and too handsome to get a glimpse of what really goes on in her head. Stacey’s unforeseen feelings towards him make her retaliate — she taunts him, never expecting to fall with him into forbidden lust.
As their attraction intensifies, the old adage stands: it doesn’t matter as long as nobody finds out. But someone always finds out and when they do, will Stacey and Ivo risk everything to give their love a chance?