Definition: Given a post that is a real-life anecdote of a complex ethical situation and a question asks if AUTHOR, NOBODY, EVERYBODY, or OTHER is wrong in the situation. Answer the question and classify your answers into yes or no.
Input: Is OTHER wrong in the post ? POST : Pretext: So this is possibly different from the usual AITA ones and I'm genuinely looking for insight as to whether I am an asshole or not, not any validation. Sorry but I don't think I can make a TL:DR for this. 

Context
My girlfriend's mum passed away after struggling with cancer for 8 months in the new year. Very sad start to the year. We have been together for a year and few months. We are currently living together to save money and for privacy as we can afford to live in a 1 bedroom. Her parents and her sisters are 'aware' of me and that she's dating me but they do not know how close we are or what all we have done in the relationship. My family does not know yet as my mum has this expectation of marriage marriage marriage and can be a little controlling at times. Therefore i'm holding off on telling them until later this year. Why's that? 

Because I will be going back to studies to a different city (I moved to this city where my gf is working because I got a job offer in the field I wanted (law) as a Paralegal. Law jobs are quite scarce and I thought this was a good way to get legal experience and make connections (both of which I have done) and also save money so when I go back to studying, I don't have to work part time and I can just study (previously I was working part time and studying full time and am half way through my degree). 

I am currently behind on my projected savings because I couldn't handle full time work and manage my food and expenses. in saying that, I am saving just probably 20% less than I had hoped. She's aware of this. I had 0 days leave left after the new year/christmas mandatory shutdown period. She's also aware of this.

She was (understandably) very upset when her mum passed away and was asking me to come overseas to be with her. While I genuinely wanted to, I couldn't because 

a) I didn't have leave left, literally 0 leave. I could take bereavement leave for 2 days for partner's parent's death but that's about it and 2 days is not enough time to go overseas for a 12 hour journey and make it back in time for work.

B) If I had to go, I would have to take unpaid leave for a week or so + last minute tickets were costing to be around 2500$. Which means that's close to $3500 gone out of my already down savings for study funds. For me to do that means I'm delaying graduation by 1 extra semester as I would have to work more than my 1 year contract to save that money.

C) I couldn't lie to my parents about going overseas as they're from the same country. And somewhere down the line when they meet my gf's family (because that's the plan), they could and possibly would find out I had come to India and not told them.

I was with her on phone, ready 24/7 to talk/text when this happened and tried to support her as best as I could. Asking her memories of her mum, her sharing photos. Admittedly, this is not the same as literally being there for someone.

Fast forward to today: we had a minor argument about something completely unrelated. And then she brings up "even for my mum, I had to beg you". I told her I explained why I couldn't come and had tried to be there for her from here. She said she understood (obviously fucking not otherwise she wouldn't be saying this) but her sisters' (2 sisters) husbands also came. These are sisters (and their husbands) who have been married 4-5 years minimum, are well settled in their careers with high paying jobs with no student loan or studies to save for. I'm clearly not in the same situation. I told her that if it had been my mum and the situation was reversed. I would have definitely wanted her to be there but no way in hell would I have expected her no matter what to be there and understood her reasons if she had genuine reasons.

I understand I'm being selfish by caring for my money and scenario but am I an asshole?

Output:
yes