So I just want to know how I can either get this security guard fired or removed from my building?? And should I take it out on the guard or my gf??

So this security guard downstairs has the nerve to asking my gf all these weird questions like do you work today, are you free tomorrow and etc. Like it's pissing me off to the point I just don't want her here no more and she even asked for alcohol from the liqour store and my gf got it for her.

Like my gf is super nice and pisses me off and this gaurd probably thinks she likes her something