Hi all, so a bit of a backstory here, dp and I have been together for 2 years and were very happy until last months incident which has left our relationship on its last legs.
Dp and I have been dealing with a lot of stress recently (a family member of mine was murdered early this year and it left me in depression and not the nicest person to be around, including recent financial struggle). Dp has been very supportive but recently it became more of a “when are you going to stop moping around” and I could tell he was getting fed up and feeling like I should pull myself together (if only it were that easy 
)
We had a big argument 3 weeks ago and I decided he should stay at a friends as it is not the right environment for the dc. Later that night, before bed I attempted to phone him to apologise for being so hard to be around lately and to say goodnight, he didn’t answer the phone or call back which he has never done before, I messaged him and it went unread until the next day. I put this down to him needing some time out and he answered my call the next morning. I asked him where he had stayed and he told me with his cousin and would be back to talk to me that evening.
Dp returned later that afternoon and seemed extremely shifty but I couldn’t put my finger on why. Before bed he switched his phone off and left it downstairs in his work bag which he has never done before. I know it is very wrong of me to not trust what he says and I’m embarrassed to say I snooped on his laptop when he went to work. Google maps shows him spending the night at his ex girlfriends house! I confronted him and he went as far as to say I had hacked his google and parked outside her house overnight to frame him 
. Of course this has now left me thinking, if you are going to the extreme of accusing me of framing you then you are definitely hiding something!
Dp then changed the story to, well google maps is obviously wrong, I wasn’t there. Google maps has been 110% accurate for the last 2 years he has had it, it has not shown him at a place he hasn’t actually been at ever, so is this just some crazy coincidence that google maps messes up for the first time ever and places him at his ex’s house the night of our argument or is my dp not only a liar but a cheat too 
I want to believe him and cannot leave him until I know what he has done, he will not admit it, I cannot stand him near me at the moment, our love life has been none existent for the last 3 weeks. Can anyone offer any advice? Is it accurate?
I also asked if he could show me an itemised bill as of course he would have probably text/called her first before showing up and he refuses.