worried or worries.

[Aikuzo]

Andrew Smodley is a natural worrier. It is something he has inherited from his father — the king of all worriers. But then there are those who are never happy unless they have a problem to solve. Andrew worried about the weather, the state of the pound, his health, the cost of living and once he even worried because he thought he wasn't worrying enough. But that was in the past. Things have changed because something happened to him exactly two years ago.

Isn't "worries" supposed to be more correct? I know I can use worried, but I'm just making sure I'm not missing something.
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I quit studying English years ago and have just come back to study the basics.

[Bala9008]

In the passage, it is said that whatever has been told was in the past.
It suggests now he doesn't worry about everything, anymore.
So, obviously we have to use the past tense.

[Aikuzo]

I've missed that. :)

Thanks!
_________________
I quit studying English years ago and have just come back to study the basics.