Doubts,Worries and Hesitantions

Of all the stores i've read, non of them really mentions the fact of how insecure caring for someone can make you. is he the one? i really have no idea, there are so many things about him i dont want to deal with. and thats what i've decided love is, finding someone whos shit you want to deal with.
He is a nice guy and everything, but he is kind of a dumbass, in a wierd way. he cant make choices and he dosent have a car or anything that he can offer me. is that really what i'm looking for? someone who can offer me something, i guess so. my life is hard enough, i think i should get some kind of freaking break. He is so nice that i dont want to tell him my doubts about us working. I'm clingly, i know this and its part of my personality, when i text or call someone, i except them to respond and not freaking ignore me because they are watching tv or playing a game. i gets under my skin so bad. I think its because i assume the worst, because when Nick was sleeping and fooling around with other women he would ignore me too and then make up lame ass excuses why he wasent talking to me and then i would just except them...i dont know why. i just know that i dont want to put myself in that posistion again. damnit just talk to me, and if thats not something you can deal with, then you are not the one.
One thing, he has not had sex, and thats not a bad thing but he also has a very small penis, now i'm not shallow enough to dump someone over that, but sex is really important to me. and can i be with a guy who cannot satisfy me...who cant even come close to penitration! and i dont want to hurt his feeling by telling him my worries, telling a guy he has a small penis isent exactly a great idea. but i dont know what to do. maybe he really just isent the guy for me. he is very immature and sometimes just acts like a total dumbass. and i hate being around those kind of people, they are annoying. he talks way to loud when we are in public, and he chews with my mouth open. watching a half eaten french free in someones mouth is enough to totally ruin your appitiet. Mom said i need to just be patient and wait for my perfect someone, and even though he is nice and a great guy, i dont think he is my one. I feel horrible, its never been me to break up with someone, and i still dont know if i can. but i cant keep lieing to myself and to him. its just not right.