Hey Hun, another vegan here. My advice, let him go. If he keeps giving you the cold shoulder he's not worth it.

And Shooting Stars is right... don't say yes to a guy to say no to a friend. You know for next time. If a guy is worth it he'll not make you choose.

Don't feel too bad... these things happen, we grow through them, and come out the other end. I'm sure that you'll meet a decent guy soon enough. Hang on there.