Is it possible to use the verb "to do" when you are referring to feelings that, at least hypothetically, you could control, like in the phrases below:
I admit I have been a bit jealous, but you would do the same if you were married to a woman and everywhere you go, there are always a lot of men trying to get her attention.
and
I won't deny that I'm feeling a bit nostalgic lately, but you will probably do the same when you get to my age.
Yes, "do" is a very generic verb. It is used correctly in the original poster's examples.
"Feel" is a more specific verb that could be used instead of "do" in the original poster's examples.
"Do" is to verbs as pronouns are to nouns.
In the way I see it, is not about feelings, is about conditional or hypothetical situations, comparing to someone else.
"If I were you, I would do the same for her"
"If you win the lottery, I will do the same as you, buying it everyday"
