[Clarent]

You should absolutely never, ever enter a relationship purely because you "don't want to be alone", because if it seems like it's fine even without clear feelings, you might miss a lot of red flags and warning signs, and resign yourself to a - potentially long - period of unnecessary suffering. Some people see it as a "feelings vs logic" situation, but, as hard as it can be, you should look at it with both in mind, because sometimes there's simply absolutely no chance for a relationship to end well, for reasons you won't always see early (or at all).

If you love somebody and wish to be with them due to those feelings, that is a legitimate reason to start a relationship.

Then again, I suppose if one is fine with the idea of something like casual dating, or maybe an open relationship, just having somebody for the sake of having them might work? Not something I have a lot of experience with, so I can't analyze it from that perspective, and my own view on relationships might be somewhat narrow.