If I had £1 for every time a white man on a dating app has told me he's 'never been with a Black woman before', I'd be richer than Jeff Bezos.
This treatment, because of its insidious and covert nature, might lead Black women to experience a host of feelings, such as degraded, deflated and wounded.
If possible, try to ward off this unwanted interaction by stating that you're not interested in anyone who might think it appropriate to racially fetishise or objectify you and report this type of interaction to the dating app website.