To take someone for a ride means to con, swindle, or deceive one, and the context describes how the person is out of town for 3 months without any contact, making the speaker suspicious that they are being deceived.
Context: "He now is out of town for 3 months with no contact, thus, I always had this sneaking suspicion that he is deceiving us all."
Hypothesis: He now is out of town for 3 months with no contact, thus, I always had this sneaking suspicion that he is taking us all for a ride.
Based on the context, is the hypothesis true, false, or unknown?