They are your Uncles and or Aunts.
Your father and your aunt are siblings (brother and sister) The grandchildren of siblings are second cousins to each other.
Yes, if and only if your father marries her :)
The analogy for "uncle is to aunt as father is to" is "brother." In this analogy, uncle and aunt are siblings, just like father and brother are. The relationship between uncle and aunt is the same as the relationship between father and brother, as they are both pairs of siblings.
In his younger years he had a very troubled relationship with his dad, when Michael became a father he sort of understood why Joe was so hard on him and his siblings when they were growing up and their relationship improved.
If you never had siblings, you have no one to have a relationship with.
Yes, three half siblings, Suzy and Joe, from his mother's previous relationship, and Victor Jr from his father's previous relationship
A "blood relationship" means people related through a bloodline. A woman and man marry but are not related before marriage nor do they come from the same bloodline. But, you and siblings born to your mom and dad are related by bloodline. Your mother's siblings (your aunts and uncles) are direct bloodline, and the same with your father's siblings. But you do not have a blood relationship to the spouses of your mom's or dad's siblings. If a cousin is related on your dad's side, your mom and your cousin are not related by blood, because your cousin is not your mom's relative. Same with a cousin on your mother's side; they are not related by blood to your father.
Lelouch and Euphemia are half-siblings. Their father is the king of Britannia, which makes them royalty, but they had different mothers.
I would describe those two as siblings in law. It's not a precise description, but then, not every relationship has a term of its own to precisely describe it.
siblings
A father and son relationship is called a paternal relationship.
father junipero serra had two brothers! and two siters