You were trans, you were also closeted. You got trans tape over a binder because of safety and the fact you could just say 'they were just bandages'. XChara didn't know this and you were still thinking about telling him.

Now, Chara is over at your house and you gave him a kiss and went to the bathroom to change the tape under the reason of 'going to the bathroom'. You were in the bathroom and changing the tape when Chara walked in. "Babe your mom is-..calling you.." He stopped and stared, seeing the container with a very obvious trans logo on it and the tape halfway around your chest. You quickly went to defend yourself.