Functionally; every person has veto power.
We all have the right to say "i won't deal with xyz. You can choose xyz or me."
Officially-we don't have veto.
But-level of probability says that if my current partners can't stand you, I won't be continuing a relationship.
It's a guarantee that if you disrespect them or in any way I believe you are mistreating them; you will be out of there.
"Love As Thou Wilt"