Tyler works hard to achieve her dreams despite her insecurities that force her to isolate herself from her peers and any chance at romance.
This is how she likes it.
So she certainly doesn't appreciate it when Dillan Weston, Mr Popularity and Fitness comes into her life, promising her a brighter, happier future, just not his heart.
No, he'll give her all of him, just not his heart.
So what is the point?
Why enjoy a brief period happiness just to be left in the dust for a fitter, prettier version of herself? Is spending what little time she has with Dillan, pining after him truly worth the heartache it'll cause?
Probably not though she'll likely do it anyway.