De Bruyne, who was sold by the Blues in 2014, scored a stunning goal in west London to secure City’s victory.
When asked if his Chelsea exit made the win sweeter, the Belgium international said: "No that's the past. What happened happened and I have no regrets coming here.
“It made me stronger. I made a decision at the time, Chelsea made a profit on me. I am happy with my new team City and I am happy with my team-mates."
De Bruyne added: "I think it was a tactical game and disciplined game from both sides.
“We had more chances, not too many but a little bit more. We played tactically a great game, It's a nice win because it's difficult to win here.
"It ends a very nice month for us. It's only the beginning but it's good to maintain the winning streak. We want to win as many as possible. We want to lose as less games as possible because the feeling when you win is better.
“We have two games with the national team and then come back and continue.”
City returned to the top of the Premier League table with their win over Chelsea, being ahead of Manchester United on goal difference.
Fabian Delph said: “The win is huge.
“We knew coming into the game it was our toughest of the season but we had a game plan and we stuck to it.
"The plan was to stick with them on the counter. I lost Willian a few times but I think we did the job to a tee.
"That performance there was for one of our teammates, Benjamin Mendy. He left us a message before the game and we knew we had to do it for him. If you're watching, that's for you big man.
"It sends out a massive message. We needed to come out on top today. There's a togetherness in the team and you could see that on the pitch today."
