Background:
I've always been very insecure and jealous, I know this and dp knows this.
I do all the things your not meant to, check his phone and his emails constantly.
I have never found anything.
His co-worker is female, older but (imo)very attractive.
I hate him coming home and talking about her (never personal, always to do with work).
I occasionaly but regularly tell him that im sick hearing about her, so now he does not mention her and as a result there a lot of things I don't get to hear now about his work.
I blow up when she texts him jokes (which she sends to most of the other people who work there as well) and if she basically texts him anything.
Like I said, there has never been anything inappropriate, its just the fact that she texts at all.
Now for whats happened:
As part of dp's job, once a year, he and a colleague have to take people on holiday, usually 1 or 2 nights.
I asked him who was going with him (there needs to be 2) and he told me it was a male collague.
When he came back, I knew something was wrong and asked him again who he was with, he said he could not lie to me anymore and that it was his female co-worker.
I know there has been problems at work, and some of the other workers had not been keen on doing the holidays this year.
His reason for lying is obviously my insecurity and yes it would have caused a massive fight.
I don't know what to do now or where to go.
He has taken the boys away for the weekend to give me time to think. We are on the verge of breaking up.
He has assured me it was all strictly professional, he has apologised for lying, I won't go into further details but right now he is a broken man.
I am torn between feeling so betrayed and feeling so guilty that my actions have led to this.
I don't know whether we should stay together or split. I love him very much and I know he loves me very much as well.
I have never been in this situation and my head is so clouded I can't think straight.
I need an outsiders view and thats why im posting.
We are both too ashamed to admit our behaviour to anyone in RL. Him for lying and me for being so jealous and insecure.
Oh and I should add that he has never done anything in the past to make me doubt him.
TIA