I also think that he did like Abi, but then everyone and their mother was trying to get him to either commit to her or end it after like, what, two days of being coupled up? Every conversation he had with her was about the fact that he's not doing enough and that according to others he should be all touchy-feely. When were they supposed to get closer when there was so much pressure on them, Scott especially?
if everyone just minded their own business and Abi wasn't still butthurt from the Mitch situation, I feel like they absolutely could've worked.