FOREIGN GF REFUSE TO VISIT BF’S MOM IN S’PORE, DON’T LET HIM LEAVE AS WELL

So I am working at a job in a country far away from S’pore for a few months and this is where I met my gf.

My birthday is coming up in September and well I know there is a lot of time left to be thinking about it but I have always thought of celebrating turning 22 at a nearby pub from my home with my friends. We have talked about this, they have been on board when I mentioned it months before I even came here. The thing is, we are all working jobs now so I mentioned it in the groupchat if it would still be cool with them to be onboard with this and they said yes, no problem.

All of them are working from home right now and I’m the only one bus stop away from them and I miss them. I have made friends here as well but it isn’t the same of course.

So I was hanging out with my gf at my home and I just casually mentioned this plan to her for my birthday and asked her if she would want to go with me because I really want her to meet my friends and I would really appreciate her being with me.

Well she sort of gave a half-hearted response of “I will think about it” so I said alright and let it go because really there is a lot of time for that. This was a week ago and she was over my home again last night and then she told me that she wants me to celebrate my birthday with her and she would make it special for me.

I was actually happy with her suggestion initially because I really like her and we love pampering each other in general but on a second thought I was a bit reluctant. My thoughts were that if we go to sg, I could meet my friends and family as it has been months since my mom even saw me and I could introduce my gf to them.

She was kinda upset when I mentioned this to her and said she wanted it to just be us but I replied with we are right now and every other day of the week plus celebrating something with just the two of us should be for an anniversary or something.

She got more upset for some reason and said I don’t appreciate her enough which I tried to counter and she was appeased for a while but then she mentioned she is not sure if she could afford the trip so I offered to pay for her travel expenses and then she got annoyed and argued some more and left. I am confused right now and giving her some space but I feel like I did something wrong? Let me know if something I said or did was out of line, I’d appreciate it.