I think compound because there were no dependent/independent clauses.
Answer:
Dear cousin, thank you very much for inviting me to your birthday party next Saturday. From now on I want to assure you that I will be there to celebrate with you, just as you wanted me to. Also, I will bring a great gift so you know how much I appreciate you and what you mean to the family. I send you a big hug, your favorite cousin.
Answer:
Foreshadowing
Explanation:
We know something bad happened but now we know that its going to get worse. This is foreshadowing something that will happen later on.
