This is speculation, but the boundary he speaks of MIGHT be the ML you and he had a while back. He's indicated and shows that he IS attracted to you, so remember...
Boundaries are for us...
The boundary your H might be speaking of, could very likely be a boundary HE will not cross... and he crossed it... so he's blaming or appears to be blaming YOU for crossing HIS boundary.
Hope that makes sense.
I do agree that he has a lot to miss, now... At the very least, remaining attractive, yet not available, could very well set him up to miss you... lots...
I am trolling this site of course, zig... although I am trying to stay away from posting and getting re-involved in supporting new people and weaning myself off the ones I am supporting...
It is just that every once in a while, there are some members who I feel very compelled to post to, as is the case with MandyRWAW and MrsD, atm...
You are doing well zig. I will always be here to support and validate what ever your choice is, for the future.