Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input: Ok. So the title says it all but heres a little backstory, so bear with me.

My brother is 6 years older than me (27M). I am currently working abroad and supporting my mother and little brother with what I am capable of. 

My brother has had it rough for a long time now, he got a divorce last year, and is barely making ends meet. Now to add to that, he hasn’t been the most responsible person - so here is where my girlfriend thinks I should not take it lightly.

3 months ago he messaged me and asked me to  lend him some money because he wrecked his friends car and needs to fix it. And his friend really needed the car and hence he was facing a big problem. He said he will pay me back come March and I said ok and sent him the money.  I honestly do not expect to be paid back, so it is all forgotten. Please keep in mind that I do what I can and I do not make crazy money that I can just dispose of; as I mentioned earlier, I support my mom and my little brother (15M) monthly.

My girlfriend was against this idea because she believes that he should be responsible for his own actions and when she asked me if he paid me back, I said no and I am not expecting it either. She thinks that this whole act of “jumping to the rescue and helping out of goodwill” isn’t cute. Bare in my mind that she totally supports the fact that I support my mom and brother.

So to conclude, AITA for taking this lightly and holding my brother to his word? 

helping my brother financially, and not expect to get the money back