I met my DH when I weighed 205 lbs., and I asked him to go to a work function with me. Since I'm a pretty shy person that was a big step for me, but there was something about him that made me want to get to know him. We've been happily married almost 33 years now. He's loved me at 261 lbs., now at 148 lbs. and everything in between. While this doesn't answer the OP's question about BMI, I hope it will help someone realize that taking a risk no matter how much you weigh can bring great reward. There are wonderful men out there who may be waiting for you to make the first move.
Women who behave rarely make history.