I need help 🤦🏻‍♀️

Me & my ex have been together for 3 years but off & on for this past year. We’ve experienced an miscarriage this year also. But ever since then, we’ve been arguing nonstop, haven’t been spending time together or barely talk to each other on a daily basis. I sent him a long text explaining how I feel & how I basically need to let him go because I don’t think he wants to be in the relationship but instead of the text being delivered, it was sent as a text message.

Should I give up on the relationship or try & fight for it?