You're not being dramatic and you can most definitely trust your feelings. This was a very unhealthy relationship (and yes, emotionally abusive). One of the issues is that your friend is a lot younger than you and emotionally unmatched, and the other big issue is that he was/is going through the biological/hormonal/emotional adjustment of FtM.

Is there someone you can talk to about this (other than a friend)? I hope you know that you deserve better than this from a relationship and that you can recognize what a healthy relationship looks like as much as an unhealthy one.