ANSWER:

If you are checking on her past back to few years, you shouldn’t marry her for her sake and not for yours as you have a mental illness that would corrupt your marriages with her and with other women unless you manage to get it cured! 

Let the poor girl marry someone who would give her a good life instead of taunting her and making her miserable all the time about things of the past that he doesn’t have evidence on except his sick mind! 

If your house is made of glass, do not throw others with rocks 

QUESTION: I’m getting married. Recently I saw on Instagram the girl clicked a photo with a nonMehram and uploaded it online few yrs back. But the girl denies of any relationship in the past or present. She is happy and satisfied with our upcoming marriage. I don’t have any means to authenticate her past relationships. How to proceed with this marriage?