Do you think he's cheating?? :-(

Sorry it's long I'm just going out my mind have no one to talk to :-(
So a few months ago I found out my fiancé had been cheating this happened at start of our relationship just over year ago (not sexual, just inappropriate messages however he did admit to touching her bum)
Since finding out our general relationship has gone down hill including our second life, but recently I just can't shift the feeling he's up to no good again whether it's with the same woman or someone new.
He claimed he was popping into work today (he's off due to injury atm) but I'm not sure whether to believe him or not, he got him self too freshened up, nice clothes, cut his nails, wore his nice aftershave simply to speak to his male boss?!? 
He didn't want sex this morning (hasn't really wanted it this week) but normally I don't want morning sex like he does so was shocked he wasn't interested I just feel he was saving himself for the other person. I don't know what to think anymore.
He lets me on his phone and computer (not that I'm snooping just he obviously isn't afraid I'll find anything)
I'm pregnant so my hormones probably aren't helping.
Any advice would be greatly welcomed x

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