How long are you supposed to work with deities?

So, I've been a practicing witch for 6 years, and a pagan for 3. I believe in all pantheons, but I primarily work with Greek gods. I'm currently working with Nyx and Zagreus, my patrons. However, I started out working with Lord Dionysus as my first deity as I felt called to. I worked with him for about 8 months, and he helped me really work through trauma and mental health related stuff. But near the end, I had a manic episode. At that time, he said he had finished his journey with me and had to leave? I accepted it and packed up my altar which now resides in my closet. Not too long after, I felt Zagreus reaching out, and then Nyx last October. But I guess my question now is do they stay around for life? My current understanding it that patron deities do, and others stay for periods to help you with certain things. But I've heard a lot of different stuff, so I thought I'd make a reddit post to get some answers. I've also been question it because I wonder if he didn't need to leave and I cut him off accidentally due to my manic episode. Any words of advice are appreciated!