Making out with your cousin is incest. Most people see incest as slightly weird. While having a relationship with your cousin isn't illegal, a lot of people will still look upon you weirdly for doing so.
It all depends on where in the world you live. In most civilized countries it is banned and illegal.
If your friend is your cousin's cousin's cousin, that make the two of you friend who might, or might not, be distantly related.
No. You are not related to the spouse of a cousin, much less the spouse's cousin.
Me and my cousin
No, you are related like it or not. But, once you are grown, you don't have to associate with your cousin if you don't want to.
Your mother's sister's daughter is your first cousin. That cousin's father's brother's son is her cousin. There is no relationship between you and this cousin's cousin unless there is another family connection.Your first cousin, once removed, could be either your first cousin's child or your parent's first cousin.
Step son or not regarding your mother's cousin that would make him your third cousin.
Make eyes at his brother...
No, because there is not relationship called "cousin-in-law."
No, you would only be an aunt if a sister had a baby. If your cousin had a baby then the baby would be your second cousin.
Your grandmother is first cousins with cousin. Your parent would be the second cousin of the cousin's son. That would make you second cousins once removed.
Your friend is not responsible for what his cousin does or does not do. If you like your friend it shouldn't make any difference who or what his cousin is.
you should start talking to your cousin instead of waiting for your cousin to start talking to you. if that doesn't work, then you should find out ways to make your cousin talk. such as finding common ground