Best friend talks to guy I like and Im not sure what to think. Advice?

Alright, this is a little complicated so I will start with background details first. I met this guy named Justin on Plenty of Fish. We hit it off well, and started meeting up. It seems like there's an attraction between us. Things have gotten shaky recently because I had accidentally done some things that I guess bothered him. He was ready to call everything off for good but we talked and we decided we'd give things another try. Well, we haven't been able to see much of each other because we're taking summer classes at different schools. He's also taking more classes than I am and has side jobs that he's also doing. He will easily tell you that he only gets maybe 3 hrs of sleep a night if he's lucky. Anyways, my bff started talking to him. I didn't mind as my bff usually always gets to know the guys i like and more or less checks them out for me. Since he's been so busy, we haven't gotten to talk much. Tonight, he sent me a text saying that he had been thinking a lot about him and i and just doesn't think we can be anything more than friends right now because we both have so much stuff going on right now. I texted and asked if he'd call me and he did. We talked, and at one point he said: I got a message asking if I needed therapy. I'll let you figure it out from there. It only took me half a second to figure it out: I had at one point asked my bff if she would just back out of things and let me handle my own relationship issues as I felt like she was beginning to cause me more harm than she was helping me. I told him that I was a little upset, because I asked her not to. She said that she would respect my wishes but I guess she went against them anyways. i was really upset and after I got off the phone with him, I texted her and was pissed. I decided to leave my phone at home and go for a bike ride in order to chill out. I got home and had three texts from her saying that they supposedly had some sort of confidentiality agreement and she wasn't supposed to tell me what they've talked about or he would be upset. I called her up and told her she had a chance to tell me. I told her that me being a bff trumps a confidentiality agreement. She spillled and said that back in April when me and him first started talking he had allegedly confided in her that he wasn't sure he was feeling things with me, and may even still have feelings for his ex even though he's suspicious that he'd go through the same crap all over again if he went back to her. My bff claimed that she told him that he needs to figure things out and shouldn't let it drag on and hurt me. I knew they had been talking but didn't know thats what it was about. Well my bff claimed there was another convo in which he still wasn't sure on things and said that there were a lot of things bothering him. She allegedly told him that he needs to talk to me about it. Well there was a night he IM'ed me on facebook and at one point during the convo started laying out all the things that bothered him, and was even seriously considering ending things altogether. We talked and he eventually said we'd give things one more try. Well tonight the text happened, then we talked and then when i questioned my bff about it these convos came into play. When me and Justin talked, he explained how his classes go through late July, he's usually up til about 3am every night reading his textbooks because he usually has like 200 pages a night to read, and he also has the labs for his classes. Besides that, he also has side jobs he's doing and he also pointed out that if he gets a teaching job come August, he's going to be really busy setting up his classroom and making lesson plans. I told him full well I knew what I was getting myself into going into this and knew that we were probably not going to get to see very much of each other. I asked him if what he was meaning was that we're basically at the same level as before where we're just not official yet and he said yes. At one point I had also mentioned in the convo that people were being negative and were saying he was just blowing me off. He told me that if he really was blowing me off, he could have done a much better job of it than he did. I knew deep down he wasn't blowing me off and that he was just busy. But now my friend has brought all of this up. My parents don't think I should believe an ounce of it because she has a rather man whoreish boyfriend who isn't making a good life for himself at all. And I can say they like doing freaky things like threesomes. My parents think my friend is just trying to find an in to steal Justin and say she's just an alley cat looking for anything to screw. She was able to message me one message between him and her but she for some reason is having issues getting the rest of them. What's your guy's view on the situation? I trust Justin, I don't think he