Depends on whether or not you loved the guy enough, I suppose. Granted my name isn’t Weiner, but I’d have trouble with a woman who wouldn’t invest in the marriage enough to take my name.
If a hypothetical woman loved a hypothetical man enough go through life as “Huma Weiner,” I think she would want to spend time with him, rather than living separate lives.
However, the reasoning of normal people does not apply to Democrat pols, anyway.