I am so sorry about your loss! Your beloved will wait, as he said, and that is the only thing you have to know. Wiccan beliefs are different in different persons, so I believe that the Spirits and Shadows (our guardians) of connected people never really part ways. Your next life will probably be on another Realm, not on Earth (as in my belief), but you will remember him. The curse you wield (if you really have one) is maybe from another husband's Spirit? If yes, then it will, again maybe, follow you to the next life. If this is the problem, I suggest casting a curse banishing or disconnection from an unwanted Spirit. It's better to face your problems now, than to wait and have problems in another lifetime. But, maybe this isn't a curse? Maybe it's just the way it has to be? You are able to ask the Moon Goddess or some other deity for help, you are not alone in this.
I wish you luck and I hope this helps!