Button calls itself numerous times

Hello,

I am currently working on a game and I am trying to create a buff slot system with 3 buttons and a buff shop with 7 buttons. What I want to do is every time a buff slot button is clicked, it will open the buff shop panel and when the user clicks on one of the 7 buffs in the panel, the buff button's image will transfer into the buff slot button.

I have implemented just about everything so when I click the first buff slot and select a buff, the buff slot's image will change to the buff selected. But when I click on the second buff slot and select another buff, it will replace the image on both buttons. And then the third one will do the same for all 3 buttons. Almost like recursively calling itself when I click on other buttons. How can I avoid the buttons from changing the other buttons' images? I am fairly new to Unity/C# and I would appreciate any suggestion I can get.

EDIT: I completely forgot to show my code:

         //This is under Start()
         buffSlot_1.GetComponent<Button>();
         buffSlot_1.onClick.AddListener(() => addBuff(buffSlot_1));
 
         buffSlot_2.GetComponent<Button>();
         buffSlot_2.onClick.AddListener(() => addBuff(buffSlot_2));
 
         buffSlot_3.GetComponent<Button>();
         buffSlot_3.onClick.AddListener(() => addBuff(buffSlot_3));

And this is where addBuff runs:

 void addBuff(Button button) {
 
         buffPanel.GetComponent<GameObject>();
         buffPanel.SetActive(true);
 
         damageBoostButton.GetComponent<Button>();
         damageBoostButton.onClick.AddListener(() => {
             Debug.Log("Gain a damage boost!");
             dmgBool = true;
             buffPanel.SetActive(false);
             button.interactable = false;
             damageBoostButton.interactable = false;
             button.image.overrideSprite = damageBoostButton.image.sprite;
         });
 
         defenseBoostButton.GetComponent<Button>();
         defenseBoostButton.onClick.AddListener(() => {
             Debug.Log("Gain a defense boost!");
             defBool = true;
             buffPanel.SetActive(false);
             button.interactable = false;
             defenseBoostButton.interactable = false;
             button.image.overrideSprite = defenseBoostButton.image.sprite;
         });
 
         critBoostButton.GetComponent<Button>();
         critBoostButton.onClick.AddListener(() => {
             Debug.Log("Crit Boost");
             critBool = true;
             buffPanel.SetActive(false);
             button.interactable = false;
             critBoostButton.interactable = false;
             button.image.overrideSprite = critBoostButton.image.sprite;
         });
 
         hasteBoostButton.GetComponent<Button>();
         hasteBoostButton.onClick.AddListener(() => {
             Debug.Log("Haste Boost");
             hasteBool = true;
             buffPanel.SetActive(false);
             button.interactable = false;
             hasteBoostButton.interactable = false;
             button.image.overrideSprite = hasteBoostButton.image.sprite;
         });
 
         iceSpikeButton.GetComponent<Button>();
         iceSpikeButton.onClick.AddListener(() => {
             Debug.Log("Increase Ice Spike");
             iceSpikeBool = true;
             buffPanel.SetActive(false);
             button.interactable = false;
             iceSpikeButton.interactable = false;
             button.image.overrideSprite = iceSpikeButton.image.sprite;
         });
 
         iceWallButton.GetComponent<Button>();
         iceWallButton.onClick.AddListener(() => {
             Debug.Log("Increase Ice Wall");
             iceWallBool = true;
             buffPanel.SetActive(false);
             button.interactable = false;
             iceWallButton.interactable = false;
             button.image.overrideSprite = iceWallButton.image.sprite;
         });
 
         healthRegenButton.GetComponent<Button>();
         healthRegenButton.onClick.AddListener(() => {
             Debug.Log("HPRegen Boost");
             hpRegenBool = true;
             buffPanel.SetActive(false);
             button.interactable = false;
             healthRegenButton.interactable = false;
            // button.image.overrideSprite = healthRegenButton.image.sprite;
         });
     }

Thanks!