Looooong backstory, been on before basically sort of separated from DH after two years of disaster and MH issues mixed with oddness and unreasonable behaviour. We get on very well for DC and still do "family" stuff during which he stays in our home. Still sort of look after him, it's probably not healthy.
Anyway he went odd again a few days ago when there was a fall out with a friend and he's now been no contact for 3 days (normally talk twice a day).
This cycle is constant, all fine then he blocks me. I worry he's done something stupid, he resurfaces a few days later like nothing happened. Meantime kids totally confused they suddenly have no calls / visits.
So I'm now mad, for the first time I'm angry. A bit of me still worried and stressing but I'm trying to sustain ANGRY and not think of what split custody/ divorce whatever looks like or how devastated he'd be or how sad losing a 20 year love is as that's when I back off.
So I'm re-directing his mail tomorrow. I'm going to get a new phone as while I pay for the shared contract it's all in his name and he's changed the passwords yesterday 
And I joined Tinder. A few people are messaging, one has given me their number (after 3 msgs??) so I've just had a WTF am I doing moment. If I actually meet any of these people he'd go nuts, he'd be so upset! What if I get caught and am I really ready to "date" after knowing no one else since 18??
Arrghhhh
Even nervous using this as lay time I did he found it and read it all 