<human>: My boyfriend and I have only been dating for approximately 3 months, but we've been good friends for over 2 years. I know from the past, while being in a platonic relationship with him, that he gets into these somewhat depressed states (lasting anywhere from a few days to a couple months). In the past (before we were dating) he used to get into these states of mind mostly because he believed that he was never going to find love and was going to die alone and yaddayadda.

Now, he's becoming upset because he is going to leave for college (about 5,000 miles away) in less than a month, and with that he's not only leaving me behind but also his friends and family. With being upset about that he is also worried about not being independent enough to live on his own and whether or not he will be able to handle college life in general (he's going to a prestigious ivy league and is afraid he won't be able to measure up). 

I keep asking him if he's okay and trying to help, but he keeps reassuring me that he'll be fine. As far as I can see, there's nothing I can do to lift up his spirits or help him out. Keep in mind this just started about a week or two ago, but I'm still insanely worried about him.

I also do not plan on ending the relationship because of it, I just would like some advice on what to do to help him out. His family also isn't able to afford therapy at this time.

Could you distill the essence of the text into 1-3 sentences?
<bot>: My boyfriend of 3 months is falling into a slight depression about leaving for college in about a month; how can I help?