The City winger admits he's enjoyed his time in Manchester.
"The one thing I came to understand very quickly is that football is important to the people of Manchester and that the rivalry between the two clubs is a big part of the culture here," Silva told the Sunday Mirror.
"Both City and United fans have been respectful to me when I am around town. You get the odd joke comment from the red half, but I like that because it is always done in a good spirit.
"Of course, I wasn't aware of the banner they have at Old Trafford - but I am now and let's hope that in the near future we can put a stop to all of that. The only way to answer things like that is to be successful.
"I never seriously thought about joining United when they asked about me because it was clear at the time that Valencia would not sell.
"I understand there was a conversation between United and my agent, but it came to nothing.
"These things happen quite often in football and the moment passes. It was only last summer, when it became clear that the financial problems at Valencia meant they would have to sell, that I really considered what opportunities were open to me.
"And it was always going to be City once they made it clear to me how important I would be to them."