The model and cookbook author has been through a lot this year physically and emotionally after suffering a pregnancy loss.
The couple each shared their own Valentine's posts after initially splitting last October.
The co-star exes had a funny exchange over Cuoco's anniversary post.
The Duke and Duchess of Sussex announced they are expecting their second child on Valentine’s Day.
Scott Disick’s relationship with model Amelia Hamlin became Instagram official on Saturday with Scott posting two photos to his Stories
David Boreanaz is showing support for his co-star, Charisma Carpenter, after allegations against Joss Whedon.
The two are already parents to daughter Bowie.
Vincent Jackson, who played in the NFL for 12 seasons, was found dead Monday in Florida. He was 38 years old.
The actor set up a lavish, rose-petal covered dinner for girlfriend Lori Harvey inside an aquarium.
The two are rumored to be dating and were spotted holding hands at a wedding in January.
Vanessa Hudgens posted a sweet pic of her and Cole Tucker celebrating Valentine's Day together, confirming the long-speculated romance.
As non-working members of the royal family, a source tells ET the couple do not need to inform them about their plans ahead of time.
The new couple seemingly cozied up by the fire together.
Queen Elizabeth, Prince Philip and Prince Charles are sending their best wishes.