It is hard in your case.
If you were married to somebody in India and had children, that would be a strong tie.
If you owned a property in India that would be another tie.
If you had a well established business that would be a good tie.
If your parents were disabled / elderly and you cared for them, that could be a tie (though how would you travel overseas without them)?
The thing is, your chances of getting a tourist visa are small at this stage of life.
What if you come to visit boyfriend but instead meet and marry a US citizen? I know it sounds wild, but that's what US officials assume.