Being married to a citizen does not automatically mean that you intend to immigrate, but if the USCIS knows that a returning nonimmigrant has married a U.S. citizen I would expect them to inquire about it. Entering on a nonimmigrant visa involves representing that you do not intend to immigrate, so seeking adjustment of status shortly after entering as a nonimmigrant implicates the question of whether the entry was fraudulent. If we are talking about an entry a year or two ago it's more plausible to respond that at the time you entered you didn't intend to immigrate but that circumstances have changed; if we're talking about entry a week or two ago it's much less plausible. It would make sense to consult an immigration lawyer with the specifics.