I feel like he felt happy that he took the road because it had made all the difference. At the end there is a sense of melancholy but also excitement, the end is slightly unclear whether or not it is an simple impactful choice or how the author interprets the choice whose impact is unclear.
The answer is C life goes on while someone is suffering
You could use warm feelings as a substitute. It doesn't directly mean in love, and can be used in a friendly way.
Hope this helps!
The answer is to this question is b