England appointed Fabio Capello as national team coach and the Italian led England to the 2010 World Cup before resigning in 2012.
"When they were speaking to me, the next match was France against England, a friendly in Paris," Mourinho told reporters. "I thought, 'France-England' is an attractive prospect.
"After that, what's the next game? The next was one month later against Kazakhstan - no, no, no, no. We have contact and I thought about England.
"What do I do? During the day I'm not training players, so I have to go and see them train in their clubs. I have to send my goalkeeper coach to work separately. I have to do this, I have to do that. I was very young and I was very proud."
Mourinho returned to Chelsea for a second spell in charge in June after stints abroad at Inter Milan and Real Madrid.