Sounds about right

No.... The joke here is that the wife doesn't know what type of oil she should get (which you said that the husband could have been more specific) so she says she knows how he feels when she sends him to the store for tampons. She (like you) could be more specific

Yes, but who said that the wife didn't specify which tampons she wanted? Usually, they'll keep telling you until you actually leave to go pick them up.

Guys tend to do that as well

Since when do girls ask men to get them tampons? That's a really stupid thing to say because pretty much all women do that themselves since it is a feminine product.

Since relationships, guest.