If a guy rarely initiates the texting, does this mean he isn't interested?

I have a crush on this guy whom I usually invite to hang out with me and my friends. Every time I ask him to hang out, he did hang out with me. He asked me to hang out with him alone a few times too. However, he rarely initiates the contact and seems like I am the one who is always initiating the contact and if I don't, we wouldn't talking to each other. Does this mean he isn't interested?