Hi, I'm not sure what I'm looking for really - perhaps just to write this down.
A bit of background - I've been with my DP for 4.5 years, I'm divorced with 1 DS (10) and DP is widowed with 1 DS (14) we have lived together for nearly 3 years in a house we bought together.
I work full time plus overtime and agency and DP works part time (30 hours) plus occasional overtime - we have a nice house and 1 holiday abroad each year but otherwise we just scrape by with no savings.
It has been hard living in a blended family but I felt like we were starting to see the results of the hard work and we, in the main rub along together with a reducing amount of dramas.
Onto my dilemma...DP was away with DSS on Friday doing some work helping his parents out with some physical work in their garden (they live 200 miles away). I stayed at home as I had to work on Saturday so was just watching TV and mumsnetting on my phone
when I came across a thread that I thought my sister would be interested in. When I tried to email the link to her, names I did not recognise came up in the text box (a couple of which were names I have discovered DP texting and facebooking inappropriately in the past but I had dealt with). Our phones are inexplicably linked through iCloud and Apple and the geniuses in the Apple store can't even fathom it out.
A little spark of doubt/panic made me hack DP's email account (not proud but wasn't hard - usual password) where I found little evidence of communication with other women but I did find evidence of an Adultworks account (Mumsnet radar went into overdrive at this point) so I hacked this account (also very easy) and found 39 feedbacks from women who he had had contact with over the last 7 years. Sickeningly, the trail went back as far as 1 month after his wife died but evidence if meetings up until last December and some online activity this March. (Don't worry - I screenshot all the evidence, MN has taught me well.)
The feedback leaves no doubt that meetings took place - it's an odd feeling to have your DP described as "clean".
Obviously - my world fell apart a bit but I almost felt relieved that if things were to end, I would be totally justified instead of the feeling that when I've considered finishing the relationship in the past, it was just me being too picky.
I went to work but didn't function particularly well - which is a dangerous thing in my profession. At about 4pm, I could hang on no more so I text to say what I'd found. He text back saying he didn't know what I was talking about and that we could talk when he go home.
In between my text to him and me getting home, the password was changed on the AW account and the account deactivated.
When he got home, he categorically denied anything had happened and that he had never seen any of the emails in his account let alone had any knowledge about the AW account. (All of the emails in his account looked unread but he does get some emails to his phone such as eBay which also looked unread so I don't know what is going on there).
We have been completely normal in front of the children and actually had a nice family day on Sunday.
Yesterday I went for an STI check and looked at what I need to do to have my wages paid into a different account. I text him yesterday to say that the AW account was undoubtably his and that I would let him know if he needed any treatment for STI's. I told him that we could all continue to live together until the house is sold and that we could still go on holiday as both the kids deserve a holiday. I fully acknowledge that in order for us both to continue in jobs and the children continue in their schools, we both need to stay in the house until the money is released to rent somewhere else. My family are local but there's not much room and his family are far away so best for the children.
Anyway, he is horrified that I think the account is his and wants to prove that he must have been hacked (really? For 7 years).
So, my question is - is there the smallest chance that he has been hacked? I have contacted his friend who is an IT expert who says it is possible (he always uses the same passwords and has trouble with his email account. Our Norton security also lapsed but this account predates the computer) but I'm still thinking it's unlikely.
I'm going to ask him to contact the police to report this identity theft to gauge his reaction because so far his efforts to prove to me that he is innocent has included watching football and playing candy crush 
I know the answer, I just want to check that I'm ending based on the truth.
Thankyou for reading.