your relationship has lasted 4 yrs. corona virus has lasted about 6 weeks. just now you are questioning things. I would make no changes until after matters return to what is considered normal. being stuck in the same house, confined with limited places and activities is going to place a strain on every relationship. slow down, deep breaths. cha nge nothing. relax. you will get thru this.

if you change everything now and realize once things clear that it was a bad decision, you may be screwed and be left alone. go slow...you can still go for walks, be outside, find activities that give you space and time to clear yourself . this will end. I promise you.