Why do you feel guilty about not having romantic feelings vis-a-vis the guy? Has anybody court-ordered you to have the romantic feelings?

The situation does not call for ANY feelings of guilt, much less for INCREDIBLE feelings that you report.

"I know this sounds terrible, but I simply don't feel anything for him." - why does that sound terrible? Again, has anybody whom you do not want to disappoint compelled you to feel romantic feelings towards the guy?

In other words, you had an objective problem (commute too long, management unfair, etc.) and you solved that problem, but created the problem of needing to look for work. All of that sounds normal.

The problem of feeling terribly guilty is completely subjective and in your head and you should be able to solve it without any difficulties and on your own.