Why my coconut oil is liquid all the time?

[Henrietta]

I thought my mum uses it. But she doesn't. Then I thought it's because I keep it in my bathroom, and there's hot inside when someone takes a bath, so it melts. But I checked it today, in the midday, many hours after anyone took a bath. It wasn't used and it wasn't heated. Also, I have no windows in bathroom, so sun doesn't reach it. It's in plastic blue bottle, which is not transparent.
ETA: The oil used to became solid after I finished using it. For... 2 months I think, more or less. I have it about three months. And 2 or 3 weeks ago I noticed it's liquid all the time.
Is there something wrong with my coconut oil?