How do i handle this issue with my boyfriend?

I posted a recent question earlier this week somewhat similar to this one, to inform you on my situation I'll start from the beginning. Great boyfriend, always cared, trusted, loves me, he has a great family, he has an awesome personality, hes cute, and doesn't lie to me about anything! I've been with him a year and four months and like any other relationship we have our arguments over ridiculous topics. He has never looked at another girl, he has always been straightforward with me, and his mom is almost like a best friend to me. He isn't too happy with his mom and me being best friends because he doesn't want me saying anything to her that will make him embarred. He explains to me that he has to face her everyday and not me. I always ignore him and his meaningless/silly complaints because he loves to joke around about it. You are probably thinking I have it good relationship wise, but here is the downfall after all this good. He is overly protective over me. I'm not one of those High school type girls who wears exploiting clothes, who hugs any male as long as everyone is watching, yells and swears as long as her friends are around, and is a straight out drama filled. I would suppose I'm quite, I wear jeans or pajama bottoms depending on if I'm on my period or not, I'm focused on school and my grades, and I don't care much for guys at my High school. I suppose I'm one of those girls who want a good career that can pay for her bills on her own without any help. I am confident enough to know I won't get involved with any bad crowds which I have in the past, I have lost a couple close friends to overdoses, I have lost family members due to alcohol poisoning and kidney failure, and I have three aunts that smoke, a step father and a biological father that are alcoholics and are failures in their past/present marriages, and I have one friend who died with her boyfriend in a car accident after being at a party drinking around 12am. I'm self aware of the causes and effects of bad crowds and friends, so overall I'm a smart girl and hoping for a bright future with my boyfriend. I'll explain my boyfriends story and personal backgrounds. He has his GED and he doesn't have a job, we are planning to move in together soon and we can't until he finds a decent paying job that is suited for him, he doesn't want me hanging around any guys and he gets 'upset' when I don't tell him where I'm going or who I'm going with, and I don't believe he has told his mother that he is moving out soon which worries me. Okay, now here is my question after you should understand him, myself, and where we stand in our relationship. He overreacts sometimes about how I feel about him and his looks. He is extremely attractive and I would love him even if he wasn't! I have expressed that to him a number of times and his replies are always 'So even if I wasn't attractive you would love me, right? Then how do I know you aren't just saying your attracted to me.' I'm not even sure know how to respond to that, it's like if someone in your family dies your friends could only say so much to you for your loss. He isn't joking about it and of course I would know if he was! Sometimes I get upset over the fact when I'm not in the mood to be 'bad' he says it is because I'm not attracted to him, and of course that isn't the reason! I'm a very emotional girl and have been diagnosed with bi polar since I've been nine years old. I cannot handle him saying this to me and I've expressed that to him, he says sorry and we fall back into the same routine every three weeks or so. How should I handle this? How would you handle this with your boyfriend/girlfriend? I'm definitely not breaking up with him so please don't suggest that, we are a committed relationship and plan to stay that way! Nice suggestions only please!