I smell a rat when you say she is the one who just decided for no reason you aren't fit to be with the kids alone.
Not sure if you've been following along at all, mvg, but Alpha has at least twice made his wife believe he was trying to kill himself. First by taking some extra sleeping pills a few months ago and making out like he was "going to end it all," and then more recently by threatening suicide at the hospital.
Frankly Alpha, I'm with your wife on this one and I thought her reply to you this weekend was reasonable and would probably be my response as a concerned parent as well. She's neither preventing you from seeing them, but she also wants to make sure you are more emotionally stable before allowing them to be with you unsupervised.