Taurus men make me believe in astrology.

I have always found astrology to be interesting and pretty fun, but I also know that it's rather silly to judge a person based upon their astrological sign. I know I said I would leave this Taurus man and move on, but I didn't. Now, I just find it funny how much he fits the taurus stereotype. Example: taurus men do not share their feelings and I have found about this man that he doesn't share his feelings, or ANYTHING. I kept on talking to him, he started talking to me and then I realized that him and his ex-exgf broke up. He's not talking again, so I guess they're either back together or he's found someone else. No matter how hard I try to get him to say it, he won't tell me that he has a girlfriend. He has been flirting with me and refuses to tell me he has a girlfriend. Out of all the men I have ever met, this is certainly exclusive to taurus. The only time I have experienced this behavior was with a virgo, and he was engaged but never spoke to me. He just stared at me and did stupid stuff to get my attention.
But what is with this? Why won't he tell me he has a gf? At the very least, tell me he isn't interested? Right now it's become like a little game for me to get him to just say that he has a girlfriend.