If that was the case, then didn't that mean that the ring should be with Gloria right now?
But that didn't make sense as well.
There was no way she would know about the ring. If she knew, wouldn't she confront them to learn the truth?
The more he thought about it, the more he felt that it was impossible for Gloria to have known about that. it wouldn't make sense.
She wouldn't have overreacted when Sia let the cat out of the bag.
Talking about that, Jack completely brushed the suspicion related to the identity crisis on Gloria but that didn't mean that he still trusted that Gloria was still that obedient daughter they have known. From the recording, it could be seen that Gloria knew that they lied to her.
She knew about the marriage and the pregnancy. And with Sia and Faith's outburst, Gloria was now even firm and knows the whole truth. And that alone was another trouble that he didn't want to work with or let Simon knows.