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: I'm 25, she's 23 and we've been together for about 2 years and living together for 1 year. I had a hectic year at my job and it was stressful as fuck, I make amazing money about 250k last year and wanted to get something for myself. I bought a vintage rolex for about 15k CAD, as a gift to myself and I picked it up yesterday and when I got home I showed it to my GF and she was super pissed, she said why would I not tell her about this, why did I not involve her etc. And was even more mad when I told her how much it costs, she called me an ass for not telling her about it or anything but I didn't think it was  big deal. I think it may have to do with the fact that she makes like 50k a year or something. 

AITA?

not involving my gf in a large purchase I made