Can being in a relationship with someone who has serious mental issues work?

[nextkobe1986]

I've been dating this guy for almost 2 months, and he wants to become more serious, but he really only offers me 50% of what i like and look for. He has the looks, body, romantic side, enjoys cuddling and laying in bed wathcing tv and movies, he can be thoughtful and sweet, he really likes me and wants to be with me, and the sex is good, but on the other hand he has issues with lying and opening up and talking versus telling the truth and being real and open. He is 19 and i am 24. He's told me that he is still in High School at 19 and he is in special education classes. I'm not one to discriminate like that. At times, i can tell he has issues, but other times, he seems normal. He walks and talks normal. It's not like he walks and talks like how you would normally see "special" people walk and talk. I just think he has mental disorders and/or learning disabilities. I have been in a relationship with someone similar, and they, from my understanding, can't really control their thoughts and lying much.

So my question is, can a relationship work with someone like this? How can i go about keeping things good between us?