I would continue to split the finances. Carry on as planned. You can be all sweetness and understanding while you're doing so, but I wouldn't let him out of the consequences of his actions unless he's willing to come to the table, hat in hand. Unless he asks you to reconsider, I wouldn't. And even if he does, I would only give it some consideration, since the splitting of the finances might still be a good idea, even if he decides he wants to reconcile and commit to you fully.
