Memory Issue Possibly Related RxCocoa Binding Method

I have this binding method of RxCocoa:

   func bindTableView() {
        data.asObservable()
            .bind(to: tableView
                    .rx
                    .items(cellIdentifier: dealCellID, cellType: DealTabCell.self)
            )
        {
            row, profileData, cell in
            cell.configureProfile(dataModel: profileData)
        }
        .disposed(by: disposeBag)
    }

Data comes from Firebase but it loads at once and as I scroll down memory use goes up to over 1.7 GB. I thought reusable cells automatically take care of the memory because if you are not seeing a cell it doesn't use memory.

Firebase closure:

db.collectionGroup("deals").whereField("Sender", isEqualTo: senderEmail!).addSnapshotListener { (snapshot, error) in
            guard error == nil else {
                print("error?.localizedDescription collectiongroup = \(error?.localizedDescription)")
                return
            }
            self.dealNumber = snapshot?.documents.count ?? 0
            DispatchQueue.main.async {
                self.dealsPosted.attributedText = NSMutableAttributedString()
                    .bold("\(self.dealNumber)\n")
                    .normal("Deals")
            }
            for document in snapshot!.documents {
                let data = document.data()
                if let sender = data["Sender"] as? String,
                   let image = data["ImagePath"] as? String,
                   let dealTitle = data["DealTitle"] as? String,
                   let dealDesc = data["DealDesc"] as? String,
                   let storeID = data["StoreID"] as? String,
                   let storeTitle = data["StoreTitle"] as? String,
                   let dealID = data["DealID"] as? String,
                   let userName = data["UserName"] as? String,
                   let distance = data["Distance"] as? Double,
                   let senderUID = data["SenderUID"] as? String {
                    
                    self.getImageFromURLfromFirebase(path: image, dealTitle: dealTitle, dealDesc: dealDesc, storeTitle: storeTitle, storeID: storeID, dealID: dealID, sender: sender, userName: userName, distance: distance, senderUID: senderUID)
                }

In that getImageFromURLfromFirebase method I just download image from url and behavior relay accepts another value. I can provide additional code. That means in the loop of that firebase method every time something like this works:

DispatchQueue.main.async {
                    userDealsRelay.accept(userDeals.removingDuplicates())
                }

That object is this:

let userDealsRelay : BehaviorRelay<[DealModel]> = BehaviorRelay(value: [])

I am sure the memory usage is caused by tableview because it only happens when I scroll down.
By the way it stops when I am at the bottom and go up again. it is not infinitely growing.

struct DealModel: Hashable {
    var storeID: String?
    var dealImage: UIImage?
    var dealTitle: String?
    var dealDesc: String?
    var dealID : String?
    var storeTitle: String?
    var sender: String?
    var userName: String?
    var distance: Double?
    var senderUID: String?
    
    init(storeID: String?, dealImage: UIImage?, dealTitle: String?, dealDesc: String?, dealID: String?, storeTitle: String?, sender: String?, userName: String?, distance: Double?, senderUID: String?) {
        self.storeID = storeID
        self.dealImage = dealImage
        self.dealDesc = dealDesc
        self.dealTitle = dealTitle
        self.dealID = dealID
        self.storeTitle = storeTitle
        self.sender = sender
        self.userName = userName
        self.distance = distance
        self.senderUID = senderUID
    }
}

and

let profileData: DealModel