I've been with my boyfriend just under 7 months, I know it's not a long time, and on the 19th of June he cheated on me. I over reacted because he hadn't been bothered to ask me about my exam that day or wish me luck for it, he just assumed it was in the afternoon. I threw a hissy fit and he went onto Omegle because he wanted some intimacy which he felt he couldn't receive from me or ask me for and he felt numb and received a virtual blowjob from a female, which he jacked off to. He told me that he imagined all those messages were from me, but they were nothing like what I write. When he was cleaning himself up he was mentally composing the message to tell me he'd cheated. It was at that point I decided to surprise him and went and sat on his bed. I glanced at his laptop and had a look at what was on the screen, he lets me do this all the time, and I saw what he'd done. Naturally I was upset and ran out the house. I decided to stay and talk to him and see whether I wanted to be in the relationship still. I decided to give him a chance but I bounced from being happy to feeling terrible, and I still am.
Normally, he's kind, sweet, caring, is there when I need someone to talk to, and he's told me he wants a future with me and I'm his one all before cheating but he has a massive lack in communication, but in all fairness he is working on it now seven months later, he does things without thinking and doesn't care about the consequences and he didn't trust me fully before he cheated on me. I know that's not a good thing but he never told me he didn't trust me fully.
All the advice I've seen for cheating is to dump the cheater and move on. I'm unsure about what to do so please help me

In my opinion, you should dump the boy!
I mean that is so messed up.
I hate guys that do that
If you don't want to dump him.
At least give it a break, then he might relize that he has a rose and shouldn't mess things up and go pick a nasty weed!