Hi Amy,
If this person is always trying to keep you guessing about them, they are playing games with you.
This means that they either don’t value you enough to be honest with you or they have their own personal insecurities when it comes to relationships or how they value themselves.
If you are not the type who is into playing games, it is best that you ignore this person so that you don’t get sucked in to the guessing game.
However, if you really like this person, you can be the one who puts a stop to this by asking them directly about how they feel about you.
If they choose to give you an ambiguous answer, you should take that as a sign of disinterest and move on from this person.