User blog comment:Melspuppies8282/Jack and Angelica/@comment-1984959-20120610105459

Taking from what is said onscreen and official material(and information I got here and there lol)...

Jack and Angelica simply had a relationship: some involving wine, music and candlelight; while others being times where they want to kill each other. They both would receive gifts from the other, being a lace given to Jack and a ring given to Angelica(not a wedding ring! But a pirate's gotta have some bling lol). But having involved in a con together on Saint Dominique and each attempted to double-crossed the other...which I somehow think was how the relationship ended(or at least one of the ending points of their relationship).

A mix of film info and "my opinion"...Take it from you will. ;)