Toradora thought me that 2 people helping each other to get their crushes can often lead to them becoming a couple, cause they spent enough time together that feelings developed and replaced initial crush.
Thou in this manga we don't really have that. We have a shy dude who got feelings for a stupid girl not realising how she pulls strings of his heart with her behaviour to then knife him Riddic style in his back by using him as a tool to progress her "crush".
Part something tells me said crush would probably fail - shy guy kinda induced it into her mind, the popular dude probably sees her as a sister or something, and the "NTRy" faces he was doing in some earlier chapters were just a "false signs".
But then manga got cancelled with an open ending so we can only speculate without original author actually saying what he had in plans. Thou it wouldn't be bad if shy MC ended up with a different girl - somehow who started paying attention to him after he main girl pushed him outta his shell - the glasses wearing girl he helped by being an MC on the trip could be one

.