Knowing that Lumi could get hurt in real life if she was hurt in her dreams made Alex rather sad. He refused to let Lumi get hurt here. Hell, he would take the blow if he had to. Anything to protect her. Though he was easily distracted the second Lumi changed the color of the grass. Ok, now this was awesome. Alex's mouth just dropped as she painted the field, slowly turning into a massive grin as he looked back over to her.
"Lumi, this is incredible! I love it!" The fact she could change whatever she wanted in a dream was unreal. In his mind, this was way cooler than turning into a wolf or playing with magic. Being able to make a whole fantasy world in dreams was so cool. And she was actually here with him! She wasn't just a figment of his. They would wake up and remember this.
"Hey, can you like, change the location or something? We can go where ever you want." Maybe some place that would brighten Lumi's mood. Anything to make her happy.