Parse through Vector2-List and compare findings - list

Question

The basic logic of my game is:
the player goes from random room to random
there is a set of rooms that randomly repeat
each room he passes the counter goes up
he has a button where he can signal, if he goes through a room that he already passed
if a room repeats and he presses the button, he goes to the next random room and the counter goes up
if a room repeats and he didnt notice, he is set back to the unnoticed room and the counter goes back to the repeating room
The result of the following code is, that the room doesnt change at all, when he reaches the trigger at the end of the room. But there are no compiler errors.
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;
public class RoomHandler : MonoBehaviour
{
public List<Vector2> PassedRoomsAndCounter;
Vector2 roomAndCounter;
int roomCounting = 1; //position in ascending order
int roomNumber = 1; //unique number of current room
bool RepetitionWasSignaled;
float CountOfRepeatedRoom;
void Update()
{
//Has Repetition button been pressed?
bool InputRepetition = Input.GetButtonDown("Submit");
if(InputRepetition == true){
RepetitionWasSignaled = true;
}
}
void OnTriggerEnter2D(Collider2D col){
print("Trigger "+col.gameObject.name);
//collided with Scene Trigger?
if(col.gameObject.tag == "SceneTrigger"){
roomCounting++;
roomNumber = Random.Range(1,6);
roomAndCounter = new Vector2(roomNumber,roomCounting);
print(roomAndCounter);
PassedRoomsAndCounter.Add(roomAndCounter);
for(int i = 1; i < PassedRoomsAndCounter.Count; i++) { //Go throught all entries
if(PassedRoomsAndCounter[i].x == roomNumber){ //RoomNumber already passed?
if(RepetitionWasSignaled == true){ //Repetition Button pressed?
SceneManager.LoadScene(roomNumber); //Yes - go to next normal room
}else{
CountOfRepeatedRoom = PassedRoomsAndCounter[i].y;
SceneManager.LoadScene(CountOfRepeatedRoom.ToString());
}
}else{
SceneManager.LoadScene(roomNumber);
}
}
}
}
}