Do you think getting a girlfriend is okay, even if you know that you both won't be together forever?

If you both understand that and are ok with that, then there's nothing wrong with it.

The problems come when one wants something different or has different expectations than the other. :/

Yeah as long as you are both aware and fine with that conclusion

As long as you don’t know or think she’s looking for something more. I think it’s ideal to tell people from get go if you don’t see yourself getting married or moving in with someone right away.

As long as both of you are aware and okay with it. If you know she's looking for something permanent it'd be a dick move though.

yes if she wants that too but it seems stupid. What kind of function is a relationship of temporary fun

I think it would be fine. Most couples don't stay together forever.

Yes you might make it happen

🤔 isn't that what dating is for? 🤔

Absolutely.