Her playing games in your community isn't the sort of social contact she needs though. Whilst this might be enough for you, for many people it is not. You also need more than just meal time together. When was the last time you went out on a date, like going to a theme park or zoo together?

You do sound very caring, but do you think your GF might be suffering from depression? It's not healthy for someone to be so socially isolated and un-engaged with life. Does your GF work? Does she have any interests?