My dob is: 5/30/1990 and my bf dob is: 12/2/1976.

According to Chinese astrology, you make a relatively decent match. However, because of the large age gap, it may be a little hard for you to communicate with each other. That is to say, it seems that mutual topics lack between you two. My suggestion is that if you feel not happy or just so so with him, you may consider give him up and seek real happiness and your love.