They Always Want To Know Where You Are Going To Be
This one is closely related with the part about jealousy and the previous paragraph (the one where they are not telling you their whereabouts). This might not mean that they are cheating on you if they act like this. Sometimes it might mean that they are very insecure as a person.
Therefore not being with them equals you cheating on them. If you are in that kind of relationship it will only get worse with time. The only acceptable option is to end the relationship. On the other hand, if they constantly pester you about where are you or where you plan on going then they don’t want to bump into you by accident somewhere.
That would make for a really awkward situation. So, if your partner asks you where you are, you can decide not to tell them, so that you can see what kind of reaction they would have to that information.