He’s playing sad sausage/victim again, though, making your grief about him (when he’s the “author of his own despair”, so to speak, so doesn’t really deserve your sympathy at all). I’m not going to ask why you told him, you obviously have your reasons, but I will say (in the gentlest way I can), that your husband’s feelings are irrelevant to your feelings about your news (and I’m sorry it happened; even without the divorce, processing your ex fiancées death would have been tough anyway).
You’re obviously an empathetic person, but I think you should keep in mind your husband doesn’t think the same way. This was his version of “and what am I, chopped liver?”