Hello my name is lori and I am dating a twenty year old and I am 40.

Well we were good friends for months before we actually got together. And we talked about everything under the sun. This young man is very wise beyond his years and teaches me new things all the time. We have a great deal in common and well needless to say he made a move on me and I was really surprised because secretly I was thinking man if I was just a little younger.
I was single for two years before we got together. And when we did get together we fell head over hills in love. He was with me every single day since the very first day we met. Then when we got together we just started living together. He was practically living with me before that but not really. Okay here is my problem. When we first got together it was like he couldnt keep an erection. Sometimes he could but at other times he couldnt.
After we were together for a while (We were staying at my place and I had a roommate) We decided to get our own place. Which we did but we have another roommate. But everything is fine. He doesnt have that problem now, but he doesnt like want to have sex practically ever. Like once a month. I had six brothers growing up and I know how much a twenty year old likes having sex. And he had me read like his journels when we first got together and they depict that he was very sexually active at a very young age.
Anyway he works in the computer field and only part time. He goes to work at 1:00 pm and gets off at 5:00 pm M-F. Well when he got the job he started staying gone until like 3:00 am then 4 then 5. And of course I believe he is cheating on me. We both have cell phones and instead of calling and letting me know he had a side job to do or what ever he claims he just forgot to call. And when I call him he starts to stumble over his words and is flippant with his answers.
I of course start accusing him of cheating and say things I later regret. His mother says that she has never known her son to be a cheater nor a liar. But an aol buddy of his told me he was doing two girls in high school. He swears he would never do that to me. I have been like so caught up in this that I check his many e-mail accounts daily his pockets every night pick apart every word he says and analize them, I feel like I am losing my mind.
Cant somebody help me. Oh yeah every man I have ever been with has cheated, lied, manipulated, me, mentally, physically, and emotionally. I have only had 4 bf in my entire life all long term relationships but unhealthy ones no less. Is it me and my baggage or what?