- No.
不 - I can't. I'm seeing someone.
不行 我有男朋友了 - Look, if you don't want to go out with me, just say so.
听着 不想跟我约会 直说好了 - No need to lie.
不用编造谎话的 - Oh, ok.
噢 好吧 - Well, I don't want to go out with you.
我不想和你约会 - But I think I really might be seeing someone.
不过我想我可能是有男朋友了