The Everton left-back spoke openly at the time about missing his family and wanting to spend time with them in the build-up to the finals in South Africa.
Fabio Capello chopped Baines from his plans after including him in his initial 30 man squad. But the defender believes his only mistake was being "naive" in making his feelings public.
Baines said: "It was frustrating how it (stories of homesickness) came about, but there's not much you can do about it.
"I was speaking in between games and had come back from a trip when I said I was looking forward to spending the break with my family.
"When you're away from home they're the people that you miss. I'd heard people saying similar things around the dinner table, and was naïve to say it in public and it got turned into homesickness.
"Obviously it shouldn't prelude you from playing for England. There's not a single person amongst the players or coaching staff who doesn't miss their family when they're away.
"It's normal and healthy and not something to be ashamed of. It got turned into something it wasn't, but maybe I was a bit naïve.
"I didn't see the headlines, but remember getting a phone call from someone asking if I was okay!"
Baines added: "I don't know whether it influenced Capello's selection for the finals and never will.
"I remember speaking to Theo (Walcott) who didn't go either, and I think he got exactly the same phone call.
"We were both put through to the manager who said, 'I'm sorry you won't be coming with us, but I look forward to seeing you for the qualifiers. Thank you and goodbye.'
"That was it. I was a late runner for the squad anyway as I'd come into it late on. I don't know if the stories had an impact.
"I'd like to think not as I'd assume I'd have been asked about it if it was an issue to check if it was a problem."
Baines is now relishing the prospect of his first senior tournament with his country even though he recognises the size of his task to replace Ashley Cole in the side.
He said: "To go to any tournament is great. Hopefully the disappointment of missing out last time is wiped away a bit for me.
"I was a bit of a late runner and only came into the squad a couple of months before so it was a strange situation.
"Six months before I was nowhere near, was never in the squad, and then you make the 30 and have a chance. You get your hopes up and then you miss out and have the disappointment.
"I think this time I've been involved in pretty much all the squads leading up to it. It was just nice to make the final cut."
In terms of displacing Cole, Baines said: "It probably couldn't get any tougher, could it? He is such a good player, has such vast experience for club and country.
"It probably couldn't be any tougher trying to get ahead of someone.
"The last couple of seasons I've just tried to play as well as I can for my club and keep getting in the squads.
"Every now and then you get the chance of a game, but they are normally few and far between when you have a top player in the same position.
"You don't take for granted you'll be in the squad so you make sure you do enough to get picked and you come away and try to train as well as you can. It's about all you can do sometimes.
"You bide your time and it's been a slow burner for me. But you can't have too many complaints when there is such a top player there."
Baines has been linked with a summer move to Manchester United after another fine season for the Toffees.
But he is channeling all his energies into helping England do well in Poland and the Ukraine.
Baines said: "The United link is flattering. There is no harm in people talking about it because it is a great club.
"But I'm at a great club as well, a club that I love.
"The focus now is all on the tournament. There's not much time to let other things seep in.
"It's about getting your head on this job for the next six weeks and trying to do the best you can."
Baines added: "Would it be hard to turn United down? I'm not letting my focus shift to that while I am in camp. I'm focused on what I'm doing at the moment.
"Would it be hard to leave Everton? Yes, obviously. You know what it means. I've been there for five years myself but also know first-hand what it means to a lot of people so, yes it would be."
Baines admits to feeling frustration at Everton's inability to show their post Christmas form during the first half of a season despite finishing seventh in the Barclays Premier League.
He said: "There is more frustration than satisfaction because we tend to do this every year.
"If we could start the league at Christmas, we'd probably be in the Champions League every year.
"I might have a word with someone and see if we can sort that out. That's probably the case if you looked at it over the last three or four years.
"I would like to think that in at least two or three of those seasons we would have been in there (the Champions League).
"It's strange. I've been there five years and we've done it every year (started slowly). I don't know what it is.
"We've mixed things up a little bit pre-season and tried different things this year. We'll probably do it against next year.
"I feel just even if we just had a decent start we'd be in a good position but generally our starts have been pretty poor and give us a mountain to climb.
"Generally we've managed to climb it but we've given ourselves a tough task."