"Momma" has already made quite a few of the reasons clear. For example:
- Given some of what "Momma" has to endure—such as Cerebral Palsy and Depression—
- Given that "Momma" already has trouble being a good "Momma" to Reilly, going through life alone and lonely—especially this day and age, in which events such as a detrimental Trump or Clinton Presidency could happen—would make being a good "Momma" to Reilly harder.
- Even Reilly wants a "Daddy" to help "Momma" raise her.
- "Momma" can't be a burden on "Mom-Mom" and "Auntie Michelle" forever, can she? Besides, what if—God forbid—something did happen to "Mom-Mom" and/or "Auntie Michelle"—where could or would Reilly and "Momma"—not to mention Camille—go?
Meanwhile, "Momma" is looking out for and waiting for whomever Reilly's "Daddy" is or might be—she already actually has a few possibilities in mind (two in particular), although she won't tell who they are unless one of them does become Reilly's potential "Daddy" (aka, "Momma"'s significant other). Incidentally, Camille has a potential human father—and Reilly has a potential human uncle—what Camille will call her human father, whether or not "Mimi" ("Auntie Michelle")'s current boyfriend ends up being Camille's human father and Reilly's human uncle, is yet to be seen.