job and kids

I got a call today offering me a job. but I must again hit road and again travel 800 km away from my home because the offer was from my previous company. why is it happening this way? and also today I got a phone call for up-coming interview. gosh, the odd of I'm getting an interview is now stands at 4-to-almost 150 applications or about 2%. with that percentage, how much is the probability of getting a job? to date none.