Hi,
Sidewinder is right, concentrate on the facts stated on your ET1 form, whatever the tribunal decides will be on the basis of what you have included in your ET1 form. Have you submitted the form as yet? Believe me when I say this you will have enough to deal with during this process and will not want to conern yourself with anything that is unnecessary, listen to your husband, I am sure he knows what he is saying.
If this is about constructive dismissal, focus on that and make sure that you have relevant paperwork to back up your claim, your legal representative will advise you