"I'm blessed to have friends like you" = Pomaika'i 'ia ua makamaka pe kēia 'oe [po-my-ka ee ooah ma-ka-ma-ka pay K-ya O-A]
Best wishes to the happy couple.
Good friends are rare and im so blessed to have you
The term for best friends in Hawaiian is "hoaaloha." This word encompasses the meaning of a close and cherished friend.
Hoaloha, makamaka, and/or aikāne
Ua lā po'maikai'i au [ooh-ah lay po'my-ka E ow]
mahalo ho'aloha [ma-ha-lo ho'aloha]
Thanks to you too
Aloha: nohona pōmaikaʻi e 'ia [no-ho-na po-myka ee A ee-ah]
"Mia" is not a Hawaiian name, so it does not have a direct translation or equivalent in Hawaiian.
Sherry is typically referred to as "sheri" in Hawaiian.
ho'ohoa (short for ho'ohoaloha) [ho oh-ho-ah]
aloha au i'k