Rape isn’t just defined as a sexually violent act.
I didn’t come here in the interest of discussing what constitutes rape or a victim (which has little to do with any given country’s laws anyway), but since your question is easy to answer, here are the results of a cursory google search:
Rape by deception, also known as rape by fraud, is a crime that occurs when someone deceives a victim into having sex by making false claims. The victim would not have consented to the sexual act if they had not been deceived. Rape by deception is recognised in the laws of many jurisdictions, including the UK and the US.