Catriona Gray apologizes to Sam Milby for not celebrating his birthday with him

Miss Universe 2018 Catriona Gray penned a short and sweet birthday message to her boyfriend Sam Milby.
In there, Catriona was sorry for not celebrating his birthdate with him.
Catriona is on vacation with her parents in Australia.
"Happy Birthday my love @samuelmilby! So sad I can't be with you today to celebrate (even though you hate birthdays) but I'm so thankful I get to do life with you. ILYSM," Catriona wrote.
Early this year, Catriona shared a short clip of how she celebrated her 27th birthday abroad with the 36-year-old hunk.
Then, the model-singer also showed a glimpse of how she and her boyfriend enjoyed Valentine's Day.