How to end an engagement

r/

I 32/F have been with my fiancé 33/M for 4.5 years and been engaged just over 2 years now. He works 1 full time job and i work a full time and part time job.
Two weeks ago, i wasn’t feeling well, i had a sore throat and muscle aces and fatigue.. I woke up on Sunday and can barely swallow. I told this all to my partner. I mentioned i want some soup for my throat and shortly after i got up to start cooking. He was just sitting in the livingroom doing nothing and playing on his phone. After about 10 minutes cooking, i asked him if he ever cares to offer to help me (which he NEVER does) and his response was to look me dead in my eyes and say “i have no intentions of helping you, that’s why i didn’t ask”
And i just felt an overwhelming feeling of this just isn’t the man im suppose to marry. How comfortable has this man gotten to feel like it’s okay to say that to me while i am sick.. we then got into an argument as i started to cry. And told him i feel like im always taking care of everything. He defends himself that he does his chores and that’s helping. I told him his half of chores is his responsibly because he lives in the house and his half isn’t considered “helping me” it’s his half and anything above and beyond that would be helping. He thinks his basic chore is “helping me”.
I have been so embarrassed with myself to allow such a situation to even happen between a partner and myself. How rude disrespectful and childish..
a few months ago, i told him i need to go on a car insurance plan and a new phone plan (as I’ve been on family plan all this time) and asked him to search for some quotes for the two of us to merge.. i hear nothing on it for a month, i reminded him 3 weeks ago, and still haven’t heard anything on it. Today i opened my own plan for insurance and phone by myself.

we have a concert tomorrow night with my friends which i planned and paid for months ago. I want to to end this relationship shortly after. Any advise on how to end an engagement where you live together?

TL;DR : my finance is lazy and disrespectful to me. How do i end this engagement.