My fiancé called off the marriage over a miss understanding.

Salam Everyone,

I am Male (28) and I met this amazing woman at my university when I was in bachelors almost 5 years ago. We rarely spoke at that time and had no contact since our graduation. We got connected again earlier in 2024 and few months later she confessed she has feelings for me and without wasting any time I followed the right approach and involved my parents to make it halal. We used to discuss basic marriage related things and everything was going great. I was excited that I will see her and her family for our first proposal meeting as we both live in different countries. Until the disaster happened, I was on a call with her and I said Oh my Freaking God over something (not in anger) and she heard it as oh my F God and she got little upset that I don’t have basic deen knowledge and such words should not be used at all. However, I tried to convince her but she thought I am covering up. Anyhow, for 2 weeks we didn’t really talk much and then suddenly she said she don’t feel anything for me anymore and doesn’t want me as her future husband so she’s calling off the marriage and the family meeting potentially because I’m not a good Muslim. (Please note that this was our first face to face meet up, our families had spoken before online) I was heartbroken hearing that but still tried to convince her that I don’t show the level of my Deen for this world as it’s a matter between me and my creator. I also said that we all lack somewhere and best are those who accept their faults and try to be better for future so I apologise for making you upset I wasn’t aware of the severity of this word even oh my freaking God and had no intentions to commit a sin. But she was not convinced and stick to her decision and blocked me.

I feel extremely heartbroken when I think about this whole situation, it’s been almost a month and potentially moved on but I’m stuck here thinking is it because she thinks I’m not a good Muslim? I can’t focus at anything, stopped talking to my family or friends and feeling extremely sick every other day. Haven’t been to gym in last 3 weeks just not functioning properly. Holding onto my patience and praying to Allah, that’s all I’ve been doing to calm my heart.

Kindly advise what should I do in this situation. Jazakallah everyone.