What's going to make it tricky, however, is her extreme obsession with wanting to marry him. It'll be tough for him to be nice without her taking it the wrong way. We know from past experience with BB (Amber season 8) that BB will set her up with extra counseling before she's released back into the real world. Would be nice if Nick could join in for some of that and help try to ease her into the friend zone.
I think what ilja said about how he could be making fun of her, but isn't, shows that he is kind and doesn't want to hurt her. Will be interesting to see what happens.