First of all some background here www.mumsnet.com/Talk/relationships/1315187-I-just-cant-decide-what-to-do?pg=1
And this is an update ...
I'm still struggling so much with all this. I wasn't happy back in the family home, it felt very wrong without H. We went 'no contact' and I have tried my best not to think/worry about what he's doing, and have succeeded mostly in doing that. However the emptiness is almost unbearable, he was my best friend and now there's just no-one 'there'. No-one to talk to/hug/for sex/laugh/comiserate with/weep on/go out with/stay in with ... It got to the point where I was phoning the Samaritans a couple of times a week. I decided to move back out to be somewhere where I wasn't being constantly reminded of his absence. My DS1 and his gf have moved back 'home' to keep an eye on DS2 (who's now 17). DD2 is there until September, DD1 moved out ages ago, so no worried on DCs (they are having a great time!). I've been in my flat for a week and a half now, I think it feels better, but this huge gap in my life just won't go away. I haven't slept properly in months, I can't concentrate properly at work, I just feel so alone. I'm thinking that being with my H is better than this, I'm just not 'built' to be on my own.