Weed question

Nickie
I do NOT SMOKE WEED!!! And this isn't about me this Is about a really good friend of mine and she would like somes answers her boyfriend smokes weed all the time and she says she smells it on him and smells it when he does it even though he does it not around her,well her question is will the weed be in her system even if she isn't smoking it and is just smelling it?? Please give me some answers so she will settle down