Prince Harry, Meghan Markle Wedding Bells Ring ... Sort Of

3/4/2017 7:02 AM PST

Prince Harry, Meghan Markle, Wedding Bells Ring, Sort Of

Prince Harry continues to show the world he's super serious with GF Meghan Markle ... because you don't take casual dates to a Caribbean wedding.

Harry and Meghan attended the wedding of Harry's good pal, Tom Inskip in Montego Bay.

They were overtly affectionate ... she swam, he smoked.

Be real -- if you could be William or Harry ...