Relationship Balance: Friends needed?

Is it healthy for your SO to be your best and only friend? Do you feel it is necessary to have friendships outside of your relationship to keep things balanced? My man has a pretty solid group of friends while I do not have any. Literally just him and my family. I just feel like I should make female friends to avoid needing so much of his time and attention. Any suggestions or opinions are welcomed.

**Also he has never complained about it and seems to actually prefer that I don't. He does say that his friends are my friends but I'd just prefer to have my own as I did before us...***