I'm very sorry that things didn't go well between you and your dad. It does sound like he's got something going on. It could have been he and his wife were having some issues and your call caught him wrong...but I do hope that he'll come to realize just how crazy he was and apologize.
You will absolutely love Jamaica! Where are you planning to visit while there? I know that when I went there many years ago, the natives were constantly wanting to braid my hair and if you asked them anything, they wanted a tip. LOL! Go and have a wonderful time. You owe it to yourself!
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.