Firstly I must admit that I am quite a suspicious person, and I try not to, but I have accused him unfoundedly before because I am insecure and have been cheated on in the past. I know it doesn't condone it but just explaining for context.
We have been together for a very long time and have a 12 year old.
I was working today and he was off and so we arranged that he would collect DS. This happens most weeks and was definitely confirmed and confirmed again by text at around 10am.
Anyway I got a call from DC saying that he had just walked home because dad hadn't turned up.
This would be unbelievably, unbelievably, NOT like DP. Not at all. He prides himself on being meticulous and to add - DS has also never before today walked home himself we always collect him.
I was worried something had happened so I called DP. When he picked up he was in the house and said that he was thinking about other things, completely forgot and that he only remembered about DS when I called him.
After confirming DS was okay, I asked did he go to our allotment today. He immediately replied "not today" then tried to change the subject. I asked again cause I thought it sounded weird and he said "Oh yes, earlier" , then became abrupt and really tried to get me off the phone.
There is a woman at the allotment beside ours who I got annoyed earlier this year (not at her, at him) because DP made a comment about how she seemed so uptight and 'needs a good seeing to'. She is attractive and our age and has no kids. I got really annoyed and this type of comment is not like him either. So he knows I have my back up about her.
I really, really, don't think that there is any physical affair. She does not seem the type to go with someone who she knows has a partner, and knowing him as I do, he would act much more consistently weird if he was having an affair. However it is so strange that he completely forgot to pick up our DS and then lied.
Firstly he maintained that he didn't lie because he was at home in the afternoon (when he was supposed to pick up DS) and he "meant" he was there "this morning but not today" 🤔🤔, and then maintains he didn't lie, just 'dismissed me attacking him'.
The thing is, I am not sure of he is reacting because of how I have accused for no reason in the past (sort of like how you might act different when walking past police even if not broken law) or there is something to worry about.