["My husband is going to be away in a business travel for a few day but I'm okey with that", 'that is good, I am glad you can trust him like that!', "Yes, that is  because I know he won't be unfaithful or do anything he shouldn't while away."]
That is awesome, I am glad you have that type of relationship!
My husband is going to be away in a business travel for a few day.  I'm okey with that because I know he won't be unfaithful or do anything he shouln't while away.