Pedophilia is about the sexual preference toward prepubescent children. It is not to be confused with hebephilia or ephebophilia. So basically, pedophilia is about 11 years old or younger. And Fluttershy is clearly not 13. So, no, FlutterCord isn't, and will never be in anyway pedophilia.
But, if she was 16, that's kind of young to be living out on her own. There's nothing to actually support the idea that Fluttershy is a teenager, in my opinion. If anything, Discord's too immature for her.
No. Pedophilia is not to be confound with hebephilia. Pedophilia is about adults and / or teens who have a sexual or romantic attirance for children who didn't enter puberty yet, like 11 years old and younger. It is a mental disease. Hebephilia is the attirance for minor who entered puberty, so between 12-13 years old and the legal age in your country. It's really not the same thing.
The meaning of pedophilia doesn't change despite where you live. Pedophilia is when an adult likes a prepubescent child aka before 11. Hebephilia is when an adult likes pubescent children aka from 11 to 18, normally. In some countries it can extend to 21.
Fluttershy is an adult, being in her 20's or the pony equivalent to that.
The meaning of pedophilia doesn't change despite where you live. Pedophilia is when an adult likes a prepubescent child aka before 11. Hebephilia is when an adult likes pubescent children aka from 11 to 18, normally. In some countries it can extend to 21.
Fluttershy is an adult, being in her 20's or the pony equivalent to that.