Secret Love by Isabella White

Guarding a secret and playing with fire has never been a good combination
Four years ago, Holly Scallenger embarked on the most difficult journey of her life. As if being a single parent isn’t already stressful enough, Holly also attended med-school, in hopes of helping other pregnant women in a way she wasn’t helped. But things don’t look so good as she has to embark on a new journey—a journey that would take her back to Boston, back to the man who broke her heart and discarded her and her babies.
Sworn to never fall for him again, Holly is put to the test once more when a chance encounter reunites them.
Secret Love is the second novel in the 4Ever series by Isabella White