Is this too sketchy, should I run from him?

Okay so, I've been sort of "dating" I don't really think I can call it that, well had this thing with this guy for about 8 months. We met each other online, I never would of thought about dating someone online and he would have never either but it kind of just happened and it was kind of just instant chemistry and he made me laugh like no one else had in a while. We both had just gotten out of long term relationships and shared that depression stage we were kind of going through and lifted each other up. Our personalities are pretty opposite so I think we balance each other out. Anyways, the thing is I'm starting to think he's a habitual liar or something. When we first met he had a lot of pictures, one was a picture of him and he looked really tall. He told me he was 5'10", later it went to 5'9" 5'8" to 5'7" .. turns out he's 5'6" when I asked him about this he was like I really thought I was 5'10"... I was just like oh aha kayy.. He also had a picture of him with a tattoo earlier, I was like oh you have a tattoo? He's like yeahh my friend so and so did it a few weeks ago I gotta go get it finished soon. Now he tells me he would never get a tattoo and that they're disgusting. Earlier in the relationship he was so racist and made alot of racial remarks in a humorly way. Turns out he half asian, he didn't tell me that until 3 months in, I really think he's insecure and embarrassed about that, and none of his pictures cam close to looking like an asian. His Dad isn't his real Dad, his dad was korean and left his mom before he was born. Anyways, I think he was fake-picturing because when I saw an actual picture of him I was so shocked it looked nothing like I thought he looked like. And when we webcammed even worse. He also told me of all these girls he hooked up with and ****** and trust me he is not something you would want to get in bed with. It's really annoying how he lies and I know he is lying. I always catch him in it. He's also like bi-polar or something and really sensitive. He always complains about everything like he's in pain or he's depressed and he hates life ect. He has no self-confidence and always says he's ugly which is annoying because I want a man who is cocky and confident and masculine and takes care of himself. He acts like a little ***** sometimes and always tells me he's so scared that he's 18 and doesn't think he can handle the world and scared to go to college and doesn't know how he's going to make it on his own without his mom. I tell him to man the **** up and he get all defensive and hurt. It's so ******* annoying. He's cried a couple times at one point. He takes everything I say really personal and is so worried I'm going to go hook up with someone. I've been avoiding him and not talking to him. He always tells me that I'm "changing" blah blah and that I don't love him anymore, truthfully I don't and I don't think I ever did. I really want to end everything with him because I can't really handle any of it much more he's just too stressful to be around and negative. I just don't really no how to get out of it or what I can say to him.