When it comes to describing being in the middle of a situation or event, there are many synonyms for the phrase "be the scene." One alternative might be to say that you are in the thick of things, or in the heart of the action. You might also say that you are front and center, or right in the middle of the fray. Other possibilities include being at the epicenter or being ground zero. No matter which synonym you choose, the important thing is to convey the sense that you are fully engaged and immersed in the situation at hand.