Is this pregnancy hormones or am I being reasonable?

[LouiseLou2018]

Not sure if I’m overreacting due to pregnancy hormones or if my response was reasonable?

Last night my “D”P was home an hour later than he said he was going to be. He said he was going for a drink after work but would be home by a certain time (gets trains and buses so easy to predict time).

He would have had to be on the 6pm train to be home for the time he had set himself. I didn’t push for him to be back at a certain time, he volunteered this and we made plans for dinner together. I got a text at 7pm saying he had missed the train.

I’m cross/upset as he was already an hour late and hadn’t text me earlier when he knew he was going to be out late. He then had to waste money on a taxi as he’d missed the last bus and it was too late for us to have dinner when he got home.

I’ve told him that I’m done with the relationship and want him to move out.

There is a back story to this -
He kissed a random woman in a nightclub a few months ago and sent her a message asking to meet up. He’s said he regrets this and we’re having joint counselling.
I struggle to trust him as he frequently says one thing but does another.
He has depression for which he has been on medication for four months and has recently started individual counselling.

So AIBU to break up with him for being home late, not telling me until the last minute and him disregarding our dinner plans in favour of one more drink in the pub? Prior to last night we had been working towards getting our relationship back to a good place.

In isolation I’d say yes but given the infidelity I understand. I would’ve dumped him after the initial behaviour.

I’m so sorry you’re dealing with this whilst pregnant.

It does seem quite an extreme reaction, to be honest.
If I were in your shoes, I might take it to the couples counselling. If it is part of a bigger picture of just not getting back on track, it might be that it is better to break up. But as an isolated event, it doesn't seem proportionate.
Hope that doesn't sound harsh?

I struggle to trust him as he frequently says one thing but does another.

This is the sentence that sticks out for me. In his situation he should be the most trustworthy and reliable person possible. He’s not taking repairing your relationship seriously.

That’s just my opinion obviously.

Thank you for your opinions. I was already pregnant (although didn’t know at the time) when he cheated on me and felt that we should try to work things out for the baby’s sake.

I think Merryoldgoat has hit the nail on the head and the way he’s behaving now makes it seem like he’s not taking the situation seriously. He says he wants to work things out, will get better, etc. but his actions tell a different story,

As an isolated incident it's an overreaction, but in the context of trying to repair a relationship where he has broken your trust in a big way and then reiterated his lack of reliability repeatedly when his focus should be on fixing things, YANBU