Boyfriend ghosts me after dating 6 months.

I’ve been dating a guy for 6 months and thought things were going well. We have lots in common and have spent a considerable amount of time together. I lost my job due to Covid and he seemed to change. He is quite well off and I had a good job.
I don’t want to ask him what exactly went wrong, but he started to speak to me with disrespect soon after and then ghosted me entirely.
I am tempted to just leave it as I am a strong woman who knows she deserves better, but I also want closure..
Should I just leave it and assume it’s over?