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

I am 20 and he's 24, we've been dating for 5 months and yes I know that's a short time but I believe I'm in love with him. I know he loves me, I can just tell. (I know that sounds dumb) Anyways onto the point, we were happy, very happy with each other. Just a week ago he's been having these thoughts of breaking up, he wants to be single just to be single. I don't understand it. It hurts a lot and I don't have many people to talk to.. Lately I've been sick to my stomach, we're not broken up yet but I feel soon he's going to tell me to get out of his place and move somewhere else. I love this man, he's the best guy I've dated and I felt I could see myself grow old with him, we just click. Yes, we've talked and I asked him was it another girl or something I did, he told me no. He said he'd be stupid to leave me for another girl, that I was perfect for him. But if I was so perfect, why does he want to be single? It doesn't make sense to me and I can't help but feel very depressed now, I'm going to lose a man I love dearly to I have no clue what. I've been putting up a front with my friends and while I'm in front of him and while I'm at work, but it's getting to the point where I just cry because I just feel so sad.
<bot>: 5 month relationship, he says I'm perfect but wants to be single, I'm depressed by this thought and need advice.