If this is too personal, please feel free not to answer. Were you having sexual relations with him? If so, of what nature were they, e.g., man to your female (vaginal sex) or man to your male (**** sex)?

Did you tell him about yourself and give him time to reply? Or, did you merely presume that the reply would be negative and break off the relationship? While it could be hurtful if his reply is negative, a positive one would be a great emotional boost to you. I will let you make the decision based on what's best for you.

Sounds like, whatever you decide to you, it's time to reach out to other FTM people to make friends. Have you considered creating a social group for FTM people on this site?