Can a man be a positive istikhara despite past and potential marriage issues?

Salam, I”m writing to a chain of dreams that I”ve received since May 2002. I had a dream at that time where I was possibly in a hospital and my father is there to come see me. Apparently my father is holding my hand when I fall asleep and when I wake up I notice I”m still holding a man”s hand, only it turns out to be some man who is a stranger to me. I ask this stranger where is my father and he just smiles at me. Then I ask him, “who are you” ..he smiles again and says don”t worry he”ll be back to see you. It appears that this stranger knows me on a personal basis by the affectionate conversation we share but I am left confused. About four months later, I was traveling and I came across this stranger in a building lobby where we exchanged a few words. His appearance matched the one that I had in the dream in May. I immediately noticed that it was this man who i had seen before. Time passed many times and we crossed paths many times. For some reason, I decided to do Istikhara in 2002 regarding this man, and I have received a positive response from day one. I”ve continued doing istikhara for 3 years and I”ve received a positive response every time. The only thing that bothers me is that I”ve known a lot of personal details about of his past through people in the community and I don”t see him being a match for me due to his bad past. Over three years, I”ve seen many dreams followed by istikhara or actual experiences in person where I see parts of his life in my dreams. I see him traveling with me, I”ve seen him meeting me for dinner, I”ve seen our mothers talking in his house and I see myself more grown up in there, I see myself having mashallah two beautiful daughters but in that dream I”m not told who the father is, I”ve seen him and his family member in one dream stopping me in the marketplace where he asks me to decide about an important matter in two weeks time, and I”ve seen my father asking me in a dream if I had known him in the past. I”ve confided with malvi”s accross the country and they said only allah knows best. If I”ve done istikhara for 3 years and it came out positive what does that mean? I have lost contact with this person in the past two years. Also in one of the dreams I saw him married to someone else and the marriage was bad. If he is married, then what is the validity of my istikhara. I was advised in a istikhara that I will marry an unmarried man by a maulvi. Is there truth to my dreams? Lastly, there was also a dream where the guy”s mother walks up to me in a masjid and offers me her phone number but I do not react immediately. Please advise, the istikharas have shown me enough but I have no contact with this man. Jazakallah and may ALLAH SWT bless you. Khair.