<human>: Summarize the given text in a few sentences.

I'm new to reddit, so please let me know if there is something wrong with my post.  I'm 19F, and person in question is 21M.

We are both in college, and had a class together.  I added a friend on Facebook that happened to be his friend also.  I sent him a friend request, and he accepted the same night.  He sent me a message saying hey, and I responded to his message.  

I asked him how he was doing, and he replied to my message with his phone number.  We exchanged a few texts that night, and he sent me a text early the next morning.  He seems kind of shy, and I don't know what to do.  Is he interested?  I feel like I'm reading too much into it, but I do like him.  I just don't know what I should do.
<bot>: Guy I like sent me his number on FB.  How do I let him know I'm interested without making a fool of myself? Why would he send me his phone number?