Loki:

Well... He killed your family.

So, um, yeah.

Tony:

Your mother doesn't believe she can trust a guy like Tony with her daughter, but she respects your decision. On the other hand, your father has decided to believe Tony's promises that he's changed and that you're the only one for him. Plus he's mega rich.

Steve:

Both of your parents are very taken with Steve's gentlemanly manners and heroism. Although your dad secretly thinks he's a bit of a goody-two-shoes.

Clint:

Like you, your parents have known Clint since forever. He's an idiot and he messes about, but you're pretty much the same if not worse. They're used to him.

Bruce:

They think he's sweet and good to you, but they're a little worried about the Hulk thing. It's all part of your job anyway.

Bucky:

Your parents have never really cared in the slightest. It'll be a miracle if they know who Bucky is. Or if they even know your name, they're so drunk the whole time. If anything, he disapproves of them.

Pietro:

You only have your mother, and she likes Pietro well enough, although she's been very ill recently so she has only met him a couple of times.