Now that you've revealed that ^^^ about your ex's family, I'm thinking that new guy is holding off because you still have quite a bit of ex baggage to deal with and if its still ongoing to the point where HIS family is interfering and wanting you to take him back, then new guy is doing all the right things by slowing things down and not wanting to get any further emotionally or physically involved with you until your stuff is settled and he's not going to end up being a rebound.
I'd not want it out there for everyone (including a psycho ex) knowing either at this point.
To him, I think you are the one showing all the red flags.
“The willingness to accept responsibility for one’s own life is the source from which self-respect springs.” ~Joan Didion