I(21F) keep disappointing my partner(21M)

Okay so me and my boyfriend are in a long distance relationship. I’m in Germany, he’s in America. We have a long history of friendship and a lot and I mean a lot of ups and downs and a whole ago i confessed my feelings and we got together 10 days ago. We both have bpd so we both struggle to be “normal” sometimes (relationship wise). He’s been learning German for me but since he’s not a native German speaker I told him to say something that was seemingly embarrassing for him. Now since I’m a native German speaker I didn’t think much of it but he made clear before I said it, that if I make him say something embarrassing he’ll lose trust in me. Again, since I didn’t think much of it because it seems like a more harmless sentence to me rather than something embarrassing I did it anyway. The sentence was “my little toe is stinky” by the way. I was laughing about it and he used Google translate to see what it means because he didn’t say it yet. I kept laughing and he was telling me how fucked up that was. His tone was more joking to me than upset but that was my own assumption. He hung up the phone and told me he’s hurt and disappointed. I’m getting pretty anxious over this because what if he leaves me? I apologized and said I’ll go to sleep but now I’m here typing this because I keep thinking about this. I’m not sure how to handle this now.