I am born 1972 rat and he is born 1991 sheep are we compatible?

I'm sorry to tell you that you may not be very compatible. Your boyfriend is a romantic kind of guy, and your rational and objective characters probably make you hard to tolerate some of his ideas and behaviors. If you want to live your life with him, you should try to understand his thoughts and learn to appreciate them. A little bit of romance will make your love life sweeter.