連勝中に負けた時、連敗中に勝った時の処理を加える

@IBAction func getChoki(_ sender: Any) {
        let results2 = ["Image1","Image2","Image3"]
        let random2 = arc4random_uniform(UInt32(results2.count))
        let image2 = UIImage(named: results2[Int(random2)])
        imageView.image = image2
        let image5 = UIImage(named: "Image5")
        imageView2.image = image5
        
        let even = "あいこ"
        let win = "あなたの勝ち"
        let lose = "あなたの負け"
        
        if random2 == 0 {
            self.gameResult.text = lose
            if self.userDefaults.object(forKey: "load") != nil {
                if self.userDefaults.integer(forKey:"load") < 0 {
                    self.load = self.userDefaults.integer(forKey:"load")
                    self.load -= 1
                } else {
                    self.load = -1
                }
            } else {
                self.load = -1
            }
        } else if(random2 == 1){
            self.gameResult.text = even
            if self.userDefaults.object(forKey: "load") != nil {
                self.load = self.userDefaults.integer(forKey: "load")
            } else {
                self.load = 0
            }
        } else {
            self.gameResult.text = win
            if self.userDefaults.object(forKey: "load") != nil {
                if self.userDefaults.integer(forKey:"load") > 0 {
                    self.load = self.userDefaults.integer(forKey:"load")
                    self.load += 1
                } else {
                    self.load = 1
                }
            } else {
                self.load = 1
            }
        }
        self.gameResult.text = String(self.load) + str
        UserDefaults.standard.set(self.load, forKey: "load")
    }

7連勝中でも、一度負けると-1連勝に成りました。
あとはviewの分岐ですね。