Stamp 4 application and separated from spouse

Hi everyone,
I am a Brazilian national I have stamp 4 since 2016, previous to that I had stamp 2 for 3 years, the visa is based on my spouse. However, since April we have not been living together but we have not reached a conclusion about our situation so far but for sure it will be a divorce, but we didn't start anything as yet. Furthermore, my stamp 4 will expire at the end of September and my spouse is not willing to go and renew my visa with me. I would like to know if there is anything that I could do to renew my visa in order to remain in Ireland and be able to sort my marriage out without needing her help.


Thanks in advance.