Am i in a rebound?

7 months, almost 8 with a man who left a 5 year relationship. Got with me 2 months after he broke up with her.

Felt great at first but noticed he only seems fully happy when we are out doing something like traveling or hiking or going out dancing. When we aren't doing anything he seems distracted maybe is the word? We also have very little in common. I like rap, he likes soft rock. He likes drama films most and hates comedies. I am bored of drama and comedies are my favorite. I hate Italian food, he loves it etc and I drag him to rap concerts and he doesn't seem to enjoy it and when he goes to rock concerts I don't go. He also plays piano.

I look at his exes page and she and him like nearly all the same artists, she likes drama, eats Italian, goes to rock concerts and also plays piano and every time I ask him why they broke up he says he doesn't know.

He just seems happy when he's distracted and seems distant when he's not doing much. I realize also we traveled or went camping almost every weekend now. Went to 12 different countries, hiked 3 mountain trails and went to 5 concerts so far in the near 8 months we've been together. We are rarely just inside doing nothing.

Is this normal