For once in his life he was unsure, unsure about where he wanted this to lead. Yes they had been seeing one another, but perhaps she only saw him as a male friend? It would explain why she was able to stay in the room as he stripped to his skin, and not react.
"I... want to thank you, for everything." That was easier to admit to than not knowing what to do next. His voice was a little gruff as he whispered.