I think the “for now” is more of Raven/Eren struggling to come to terms with himself and how other people view him since he’d been alone for so long and he’s getting used to people being there for him. He went through so much hardship and betrayal in his original body and ended up taking the body of another, and no one knows he died because Raven was erased when he inhabited Eren’s body. You can only imagine how lonely he feels and his reaction (and lackthereof) to other people loving him in various ways (platonically, familial, romantically) is normal, he never thought anyone would be on his side again and he was overwhelmed hearing someone say they want to help him realize his vision and his late family’s legacy. However he questions if they were to ever find out that he is the complete different person they speak of, could they love “him” and not just “Eren”. But being unable to articulate all the turmoil and emotions, he says “thank you, Luna” and I think he’s referring to his expression of gratitude being “good enough for now” and not potential feelings towards her, as he did express he would only be married to Lindsey.
I think the “for now” is more of Raven/Eren struggling to come to terms with himself and how other people view him since he’d been alone for so long and he’s getting used to people being there for him. He went through so much hardship and betrayal in his original body and ended up taking the body of another, and no one knows he died because Raven was erased when he inhabited Eren’s body. You can only imagine how lonely he feels and his reaction (and lackthereof) to other people loving him in various ways (platonically, familial, romantically) is normal, he never thought anyone would be on his side again and he was overwhelmed hearing someone say they want to help him realize his vision and his late family’s legacy. However he questions if they were to ever find out that he is the complete different person they speak of, could they love “him” and not just “Eren”. But being unable to articulate all the turmoil and emotions, he says “thank you, Luna” and I think he’s referring to his expression of gratitude being “good enough for now” and not potential feelings towards her, as he did express he would only be married to Lindsey.