Im really unhappy

[Baylesf]

We have been together 18 months no kids.

basically I’ve got to the point where I don’t see a future, I don’t think our values or visions for the future are that aligned. He is kind and generous and loving but I don’t feel he gives me exactly what I need. There is something missing.

I do a lot of the cooking for example (and the general household stuff), he does pitch in but not that much. Today he had said he would cook for us but arrived home really late. Feel like I can’t begrudge him because he was out with his friends and it’s not something he does all the time but why promise then? He offered to order us both food but it was almost midnight so I declined.

I feel so angry and frustrated with things. Ultimately he could change all of this but my feelings would still be the same, we’re not right for each other. Just feel so so sad.

Sorry you're feeling sad.
Don't have too much advice, just didn't want to read and run.
It sounds like you've made your mind up that you don't want to continue the relationship, which is absolutely fine.
The obvious thing is to have a conversation with him about how you're feeling/ his behaviour etc... but only if you want to consider trying to keep the relationship going.
Is it possible you'll feel different in a week or two? Could it just be a blip, exacerbated by him being rather inconsiderate lately? Sometimes, everything gets on top of you. Living with someone can be hard.
Saying that, at 18months in, you might still expect to be honeymoon phase.
Either way, whatever you decide, it will all be fine in the end.

Ultimately he could change all of this

What does he need to do? Be more... reliable? ....punctual? ...considerate? ...thoughtful? ...understanding?

What is it that you need that he's not giving you?

He's not right for you, so I'd just end it now before you get even deeper in.