Most Helpful Guy
It's really difficult to tell but I'll make it easier for you. he isn't the only one that is in a long distance, you are as well in a long distance from him so he might be asking him self the same question. Think that way and you will find the answer.
Most Helpful Girl
can't really tell unless there's evidence.. But when he loses his interest on you, you can tell when he doesn't find time to talk to you nor have plans to see or be with you or even talk about future plans.