Your cousin is not related to your spouse.
The relationship between you and your cousin's spouse is that of a cousin-in-law.
No. You are not related to the spouse of a cousin, much less the spouse's cousin.
Your cousin's spouse is not related to you and neither is the spouse's father, despite the fact that he is your cousin's father-in-law.
Your cousin's husband is the spouse of your cousin.
Your cousin in-law
The term "cousin-in-law" is a recent invention and is neither well defined nor widely accepted within the genealogy community.Presumably, a "cousin-in-law" is your spouse's cousin. The mother of your spouse's first cousin is his or her aunt, but she is not related to you. The mother of your spouse's second cousin is his or her first cousin, once removed.
A cousin by marriage is someone who is related to you through marriage, not blood. They are the spouse of your cousin, or the cousin of your spouse. They are considered part of your extended family, but not directly related to you by blood.
The English language has no special term for the siblings of your cousin's spouse, other than calling them "my cousin's brother-in-law" or "my cousin's sister-in-law."
Your cousin's spouse, there really isn't a technical name for it, though you could refer to them as a cousin-in-law, but no one really does that. For the most part they would simply be referred to as a cousin.
кузен this how you type it because I am fluent Russian hope this will help you спасибо = that means thanks
Your uncle's daughter is your first cousin. The English language does not have a special term for the spouse of a cousin. That spouse is not considered to be related to you.
Your cousin' spouse becomes your cousin by marriage (cousin-in-law). The reason for this is that they have the same relationship to you.