Lovers Exchanges
There is another time when the three switchable MBTI letters seem to switch and remain switched for short periods of time. When two people meet and each is seeking a mate, one or both persons may be switching to the opposite personality type while the information exchange is occurring. If the “getting to know you” phase is extremely short, and the move in or a marriage occurs too quickly, the morning after refrain may be “What have I got myself into?” Before committing to something that is supposed to be as long lasting as marriage or even living together with marriage benefits, then you really need to know the other person well. This includes seeing them interacting with others both at work and at play including them with their and your friends and their and your “family” (including close personal friends).
What is My Psychological Type 