I am married, and I am separated from my husband. I was very lonely when I lived with him. Since I am married, I won't date anyone, no matter what. I don't care what others do in this regard, but for myself, this is the correct choice.
I am not lonely now, compared to that. Participating here has really helped, since I moved to my own place when Covid was rampant, and I'm still very careful so I won't get it.
If I were to find myself officially single, the one thing I know for sure is that I would not marry again. I am not good at picking husbands. Red flags are there, but I don't realize it until it is too late. I don't know that I would ever get used to being married to someone who is a good husband. I don't think that I could trust that they wouldn't change for the worse.
Not that this matters now. I figure the dating pool for women my age is pretty slim. If I were single, and I got lucky and met someone I clicked with, we would become friends. I've always had both male and female friends.