Ref. No. 2114/44-2135
In the name of Allah the most Gracious the most Merciful
The answer to your question is as follows:
Your Istikhara was answered in the negative, so the proposal does not seem appropriate for you. Hence, you should act according to your Istikhara, and it would be better for you in-sha Allah.
And Allah knows best
Darul Uloom Waqf Deoband