Answer:
(Fatwa: 608/511/B=1432)
This is a satanic whispering. Do not pay any attention to it. This relation of yours will be strong and durable. You should perform nikah trusting Allah and should not fall prey to a doubt.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
