<human>: I've been dating this 21 year old guy for 3 months. Everything was going swimmingly.  We had an active and healthy sex life and a wonderful relationship. 2 months in, he told me that he loved me. There was no sign of any sort of discomfort in our relationship. We had our share of disagreements, but nothing huge. We always hatched out our problems and worked through difficulties together.
Then school rolls around. His personality almost completely changes. He's a 4th year film student at the university we both attend, so he's super stressed about filming his final project (a 20 minute documentary) and all of the other things that are going on. I'm a 2nd year theatre student with a workload that is competitive with his. 
Last night, out of nowhere, he explains to me **on the phone** that he "wasn't ready for a relationship yet", but literally the same day he had kissed me and said i love you before his class began. This whole thing just came out of left field. 
The worst part about all of this is he said he just wants a 'break' for a while, but he doesn't want to break up. I know he isn't the kind of guy to sleep around and then get back together, but I'm just so confused.
Is there anyone out there who could offer some advice to me?

Give me the gist of the text in a nutshell
<bot>: Guy I've been seeing wants to take a break from our 3 month healthy/happy relationship, explaining he wasn't ready for one. Advice needed.