sorry you're going through this peedoff... ive been there... i started to write a reply to this earlier, but a whole bunch of stuff flooded me...

the thing that always matters most, as i'm sure you agree, is what is best for the children..

you can look inside yourself and know that answer..

for me, i had to back away in the best interest of everyone... not saying thats what you should do at all..

assess it carefully... my own ex blocked and hindered visitations also, and that is about the most pain ive ever experienced...

its tuff to deal with alone.. for me, i needed to talk, talk, talk....

hope you find both answers and relief...