I (24M) stopped on my way home to pick up a smoothie for my (23F) girlfriend "Evangeline". She's pregnant and is craving smoothies, so I thought it would be a nice surprise for her. She always drinks the strawberry-banana smoothie, so that's what I got for her. But when I got home and gave it to her, she didn't want it. She said that she doesn't feel like bananas, and asked me to get her a different flavour. I asked her what kind she wanted, and she said she didn't know. I told her that I need to know what flavour. Evangeline said "just get me what I like" and I told her that I don't know what flavours she likes other than strawberry-banana. She started to get frusterated and said that I know the other one she likes. I had zero clue, she's never asked me for anything other than strawberry-banana. I repeated myself multiple times that I don't know what she wants, and she started to cry and said that I was pressuring her too much over a smoothie. She's been in a bad mood ever since, has barely spoken to me all evening. AITA for asking my girlfriend to tell me what flavour of smoothie she wanted?