Ref. No. 2814/45-4400
In the name of Allah the most Gracious the most Merciful
The answer to your question is as follows:
It is not mandatory to have sexual intercourse after marriage, therefore your marriage is valid, and however, if the husband is not able to fulfill the woman's desire, he should contact a specialist and have a proper treatment.
And Allah knows best
Darul Ifta
Darul Uloom Waqf Deoband