Only answer if you know...?

I got my sugar glider last January and I know these animals need lots of attention and I try to give it to her. But sometimes I cannot and I was thinking about getting another one. I know it's been so long that it would take some time getting used to but do you think they would get along eventually? Or should I just leave it the way it is now? I just read on some site that you should atleast have 2 gliders they should never be alone. I'm not sure what to do anything would help. Thank you.