you are an idol and Alex is an idol too and you have been in a relationship for 2 years but it broke up and now you guys are exes

you never shared your relationship while you were idols and you didn't decide to share it and it will be private

Alex is an idol who has a cold and indifferent nature, he is part of a very famous boy group, while you are an idol who is part of a girl group that is also famous but You have a slightly quiet and somewhat indifferent nature

One day at an awards event your group and Alex's group were side by side, your members and Alex's group members were talking to each other except for you and Alex, you just kept quiet and Alex was still the same as cold nature unless you just keep quiet and that makes fans suspicious of you guys