XH and I have been separated since June. Ok, more like 'on a break'.
We 'got back together' bout a month later, but 6 weeks later I called for an official separation.

I did it because I was unhappy in my marriage. Very little communication (he stopped talking to me so I stopped talking to him), wanted to show affection but because of me being unhappy, I didn't want it. Didn't like to buy me anything that wasn't necessary (before Christmas, I can't tell you the last time he got me anything nice - like a small bunch of flowers just because)

Fast forward, one month into the separation. Bout early September. A good and long time male friend and I start seeing each other as more than friends. I had a little crush on him years ago - before XH even came into the picture. We started going on dates, spending a heap of time together on the days I was away from the kids (XH had the kids Tuesday night, Wed + Thur, I had them Fri - Monday night) to the point that we really do like and care for each other. We agreed that we could say that we said we're seeing each other just before Christmas.

Fast forward to now. XH is all lovey dovey, wants to work things out etc. He then flys off his handle after Christmas because he finds out I've been seeing this friend of mine. Ok, so I'll admit I should have told him instead of him going through my messages on Facebook (which he's done to me on numerous occasions - and the reason both of my Facebook accounts had been deactivated at some point or another) and reading the messages to each other.
But, now he's making me feel guilty cause he's giving me the 'we're still legally married so it's technically cheating' thing. Is it cheating? I was under the impression that being separated means not together therefore not having to answer to him and beig able to find myself and being happy again while it's my time off.

After all that, he still wants to work on it. He's been here for a week straight - and I don't know how much longer I can put up with him.
The first couple of days were fine, and he's now getting so possessive - won't let me go out (like he used to do), wants to know who I'm talking to to make sure it's not my friend, comes into the bathroom ALL THE TIME when I'm having a shower, still expects to sleep in the same bed, sits over my shoulder to read what I'm looking at on my phone - all this is just driving me away because I'm feeling too controlled, claustrophobic and just all round confined!!

So, I guess what I want to know is how do I tell him (without breaking his heart more than I already have) that I just want to be alone (well with the kids) and live on my own for a while??

Sorry it's long - took a while to type on my phone.