I was confused that why he said “sorry” to me.改错最好说明一下理由、

I was confused that why he said “sorry” to me.改错最好说明一下理由、
I was confused that why he said “sorry” to me.改错
最好说明一下理由、

I was confused that why he said “sorry” to me.改错最好说明一下理由、
去掉that.
理由 本句的意思是 我搞不懂为什么他要对我说抱歉.
was confused 系表结构,看做谓语,后面的宾语从句只用why引导即可,that在宾语从句中
既不做成分,也没有词义,况且宾从已有引导词,所以不用that.

去掉 that，因为that 在从句中不做任何成为
而本句话的意思是：我困惑的是他为什么跟我道歉。
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这一句话在一行还是分行？