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

I've 'been with' this Collin for about 10 months now. I use this term losely because actually, we aren't together technically. All of our friends do think we are dating.

About last January, we started sleeping together and going out together. I've known him since high school.  Over the past months, we have talked about all kinds of things. He's always said he's liked me, and he's even suggested dating me, but it's never been acted on. He's told me he loves me a couple times, but I never say anything back, I just kind of smile, because I don't know how he means it and I don't want to say it seriously if he just means it in a friendly way. Over the Summer we talked about getting married and houses but not very seriously, just kind of like throwing it off our backs. 

We've been on one 'date' but at the end of it he called it a 'practice date'. He says he was joking but I don't think he took it seriously so I decided not to. On Halloween, we went to a small party of our mutual friends, and he held my hand and kissed me in front of everyone, so now they definitely think we are dating.

The week after he moved into my apartment. So he's been living here for awhile, and I just don't know what's going on. I like him, and I think he likes me. I just want reddits opinion on this. What do y'all think is going on? Any advice on how I can bring this up with out making things weird?
<bot>: Getting a lot of mixed signals from my best friend that I've been sleeping with and living with. Need advice on how I can bring it up without making things too weird?