Why do people waste their precious time on being in pointless and meaningless relationships?

Lately I have been noticing that alot of people who are in relationships are always out to cheat, meet others, chatting up other people. If they are not doing this, then they are always arguing, fighting, full of dramas.

I don’t see the point, I’d rather be single and lonely than sorry and miserable. But it seems to be getting more and more common!

The way I see this stage in my life is as the process of elimination- finding out what I don’t want. I just don’t know why people waste their time.

Do you know any people like this?
Are you like this?
Have you been in this situation or are familiar with this scenario?

Is there a point to it?