In someone close to you, not necessarily your child. Just wondering....

Like someone acting really close with strangers, but with their own family they act like their family are actually strangers who need things explained about them that have been well known for many years.... or another example, when I reach out to bond and be sweet she pushes me away and keeps me at a distance but then when I go take time to be by myself she's all loving and sweet all of a sudden, as if I'm the one who pushed her away.

It's confusing.