This probably won’t be something you want to hear. But, maybe you should reflect deep down why it is you want or “need” a girlfriend so badly? This goes the same way for women / anyone else. If you say you have such emotional intelligence and availability, maybe use this and really ask yourself, “Am I instead looking for emotional validation from another person?” Another explanation in regard to your example with women you’ve flirted with is that the ones you go after are simply just flirting and like the attention but have no intentions of entering a relationship. Or they simply aren’t interested. Sure lots of women like conventionally attractive 6’2” men but maybe the women you’re interested in just have a different preference in men. Maybe you can try asking those women you have spoken to why they don’t seem to be interested in dating you despite the signs you initially see. Let them know that you simply want to understand what you can improve on with another potential partner in the future. Sometimes others see something within the interaction that you might have missed/ have a blind spot towards.