Bluntness, it's not the kiss though is it, it's the lie.
Georgia said she didn't fancy Jack2, was only going on a date because he made her laugh and came back saying he flirted, complimented and kissed her.
Jack2 came back and said it was a nice date but Georgia kissed me on the lips at the end and I tried to avoid it.
I think Laura is quite rightly concerned about whether her partner is a truthful person, whether she's looking like a gullible mug to the outside world, whether her 'best mate' made a play for the guy she likes.
Also, you're seeing 24hrs of activity condensed into an hour of footage. If Laura mentions it twice in a day she's hardly making a big deal out of it, but if we see both conversations in entirety during our hour it's going to look like she's making a big deal.