Should I continue this relationship?

As I said, the college is quite close to the HS.

Most relationships when you’re young don’t last.

We have discussed our relationship after and we both do hope it may continue, I just want to see if it would work right.

If your happy in the relationship and wouldn’t consider ending it otherwise then you don’t need to immediately end it. Will it be more difficult than if you were around, yes. As others have said most relationships don’t make it. Whatever you do don’t cheat. If you begin to feel you’d like to go out with others then break it off. No one will have been unfaithful and if you were to decide to get back together at a later time then you don’t have that baggage. A couple other things to consider. Don’t let your relationship hinder you from developing friendships in college. You will be developing your own life there.

No, I don’t think it will be a hindrance for friendships tbh, but the places are quite close as I said,

Why are we pretending like people in stable, happy relationships never have doubts or concerns? It’s only natural for OP to worry about this, and the fact that he’s questioning it isn’t evidence that he needs to break up with his girlfriend, that he doesn’t care about her, or that he’s not committed to the relationship. I’m not saying he is or isn’t - only that it’s impossible to tell solely from the question. He’s only asking a simple question about whether he’d be perceived as creepy for hanging around a high school.

FWIW, OP, I don’t think most people would think it was weird if a college freshman occasionally visited his old high school to see friends and his girlfriend. You’re only a year removed and it’s totally understandable. If you hang around there all the time, that might be perceived as weird or pathetic, but not creepy. It’s only when you get into the verge of 21+ that it starts to take on the creepy feel. There’s really not that much difference between an 18-year-old college freshman and a 17-year-old high school senior.

That said, you’ll probably be mostly seeing her outside of school, right?

weird and pathetic isn’t really much better

You don’t have to visit her at school. When you’re home on breaks, you can go out and do something together or hang out at each other’s homes.

Are you concerned about senior year events she might want you to attend (like homecoming and prom)? I think as long as you’re not at every Friday night football game (or whatever the regular social activities at the high school are), then escorting her to a couple of the big ones won’t be a big deal. And if it makes both of you happy, who cares what everyone else thinks.

But I wouldn’t worry about those things until you get there. If you’re still together, you can figure out what you want to do when it’s time to make a decision. If you want to keep dating her, that’s really the only decision you have to make now.

I wouldn’t mind visiting her school as it’s not too far away, a private international school anyway.
The thing that discomforts me is how the justification used could be used to justify something I personally am not ok with like 26 and 18.

How could “18 and 17 aren’t far apart” be used to justify 26/18? That doesn’t make any sense.

as I said, not really ages, locations

18 and 26 year olds are legal adults.
And your situation is not comparable to that age gap.

YOUR relationship is about you and her. Period. Maybe you’ll realize that once you get out of the high school bubble. Stop worrying about what other people think of you. Your relationship isn’t going to set any kind of precedent.

I think what OP is worried about is that they are turned off by the idea of older people going after girls in HS, which is why they keep bringing up that 18 and 26 situation, and they don’t want to be lumped into the same category as the above.