When a guy cries over you, especially during breakup and hard times, does it justify his true feelings?

My boyfriend and I used to have the most amazing relationship for the first 6 months. We really can both see each other spending the rest of our lives together. I started becoming unhappy in the relationship around 6 months, and felt like he was starting to love me less. I think I pushed him away by being too b*tchy about our problems and stuff instead of letting us move on with the past. Now, a year and 2 months of being together, we are at the lowest I think we can go. 2 months ago he wanted to break up with me because he couldn't deal with me crying and because he felt like he was a horrible boyfriend to me, etc. I don't know if this is totally true, but he has been validating his point on that now for the past 2 months about how he hates messing things up. I think I like hypnotized him into thinking he's a horrible match for me whenever I got mad for things he did. ): Whenever we fight, I always bring up things in the past as comebacks and stuff...I know that's not right and I've been stopping. It's just really hard when you're so mad at someone. He has been a great boyfriend, I just have a really bad complex where if someone lets me down at all I get very offended and over think it. I need to learn to lower my expectations. =/ The only bad things he's done to me ever is when I cry and want to talk things out, he gets extremely pissed off if I say one negative thing and it builds up into an argument. I know I have a lot to blame for that, seeing as I kind of attack him about things. But still, it gets me upset when he can't be there. All I want is to feel loved. Anyways, recently I've been thinking about breaking up and stuff and have been confronting him about it. The first time he cried and had a panic attack about it. Every time I talk to him about breaking it off, I realize that we just have problems to fix and other than the problems we are perfect. Now it's to the point where he has this huge wall up because he got hurt. I got hurt, which made me hurt him, and now we're both hurt. =/ Idk where to go from here. I couldn't handle him being un-pionate last week so I decided to break up for good and I did it with him in person. He completely broke down about how he was sorry and how he's a horrible boyfriend. I feel so bad, but I can't tell if his intentions are true or not because I want to break up because I feel like he's too insensitive...and then every time I try to actually break it off he shows me the sensitive side which makes me not want to. =/ I just wish he was more pionate like he used to be. Advice?