femscorp2000~~ Whats the issue with him?

My Taurus bf recently broke up with me (Cancer) for another woman. He is 25 and I am 24. We had been together for over 4 years and I thought the relationship was going well... we even talked about marriage. Though he broke up with me, he still contacts me, but I do not respond. When he ended things, he said that he knows he is going to have a future with me and that this wouldnt be the last time we spoke or saw each other. I told him he may never see me again and he disagreed.

I do not know how to approach this situation because I do not know if he is reaching out as a test to see if I am still interested. He said to me that I doubt his love for me... but how could I not when he's the one who broke up with me? Also, I thought Taurus men were loyal and steadfast...