The pair clash in the bedroom and Gabby ends up in tears.
It begins jokingly, as Hardeep says he annoys Gabby.
"Only sometimes," Gabby replies.
Hardeep then analyses: "Do you know what darling? I'm really looking forward to getting out of this house so I can find out who you really are, 'cause I think i like who you really are, not the version that's existing in this house."
"What the hell are you talking about?" Gabby reacts.
Hardeep continues: "Really? It's a very simple words and a very simple concept. I think there's TV Gabby and there's the real Gabby."
"What do you mean?" queries the Love Islander.
"I was just pulling your leg," Hardeep claims.
Gabby fumes: "F**k my life. You try and embarrass people in front of everyone and it's not okay."
As she storms off crying, Hardeep says: "I'll be gone soon love, it's okay."
He then says: "She's a petulant wee thing. She gives it out but she won't take it. Did I hurt her feelings? Poor diddums, bless her."
Dan Osborne speaks up in Gabby's defence: "I know her and she is being herself."
"Well then that's my mistake pass my apologies."
Dan snaps: "Well just stop being rude, getting yourself in trouble."
Elsewhere in tonight's Celebrity Big Brother highlights, its nominations time again but with a twist. This week, it's killer nominations. housemates give only one nomination but whoever they name will automatically face the public vote.
Meanwhile, Nick is set a secret mission - without realising it - before a helicopter flies over the house with a message for Ryan.
Celebrity Bi Brother 2018 airs tonight at 9PM on Channel 5.