Respuesta :
Answer: Miguel was following the relationship rule of:
SUPPORT.
Explanation: In this rule friends are meant to support each other during times they need themselves the most. According to the passage above Miguel was shocked because he expected a lot of support from his friend on his birthday but his friend has dissapointed him.
Answer: Constitutive rule
Explanation: Constitutive rule in relationship is the regulation between two or more party that determines suitable behavior in any certain instance or situation .The behavior is based on the understanding particular instance by interpreting the meaning or message.
The situation that is described in the question states that Miguel relates the relation with constitutive rule .He reacts to mentioned situation by estimating the meaning of message given by his friend and thus responding to the context.
He thinks that the possibility of his friend not arriving at the party maybe due to some trouble or friendship wasn't true between them.This shows he interpreted two possible reasons that can be responsible for absence of his friend by understanding the message.