Ollie, who has openly admitted to liking Sam, looked rejected after hearing TOWIE star Sam comment on their friendship.
Once Sam admitted in the diary room that things may not progress romantically on the outside, it was clear that Ollie took her words to heart.
In scenes yet to be aired, Ollie said to Sam in the kitchen: "I don't want you to go tomorrow, even if you don't fancy me."
But Sam denied Ollie's claim and explained: "I said we've built such a good friendship inside the house, I'm not sure what would happen outside the house."
Refusing to take her word for it, Ollie repied: "To me, it was a complete dismissal, which is fine. And I didn't really want to talk about this. I didn't, especially in here."
Sam, who protested that she "didn't dismiss anything", soon made her way to the garden to get the opinion of fellow housemates Dappy and Casey Batchelor.
N-Dubz star Dappy said: "He likes you a lot. People like him and Lee wear their heart on their sleeves."
Joining the group later on, Ollie continued to say that he felt "bummed out" by Sam's comments.
Last week, Made In Chelsea star Ollie admitted that he had feelings for Sam after telling Luisa Sizzman that she is exactly his "type of girl". Ollie gushed: "She's normal and it's so hard to find someone normal. In all this year, I haven't met one person where I've thought 'I could sit there and cuddle you on the sofa', apart from her."
Celebrity Big Brother continues tonight at 9pm on Channel 5, where Sam, Liz Jones and Jim Davidson all face eviction.
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