Final answer:
Steven likely thinks Renee is talking to him now because they share a nostalgic connection and mutual understanding, as indicated by Renee's enthusiasm upon his return and their eager conversation.
Step-by-step explanation:
Steven may think that Renee is talking to him now because of a nostalgic connection they share and a mutual understanding forged through past experiences. The sentiment in their conversation suggests a deep familiarity and a rekindling of their relationship. Steven might perceive Renee's actions as a reaffirmation of their bond, which could be further substantiated by the evident joy she expresses upon seeing him and the eagerness in their exchange. The clues in the provided text highlight Renee's enthusiasm and Steven's reflection on the time they have been apart, indicating they both value each other's company.