I wrote my long distance boyfriend an email stating that someone told me he is talking to other people?

I asked this in the relationship section, but no one answers there b/c it's too busy lol. So decided to post here in my fav section :) Any help would be most appreciated!

We met 10 months ago and only saw each other once about 3 months into the relationship. He came to visit me and we spent 4 days together. We had an amazing time and totally clicked both on the phone before he came and during his trip. Then he went overseas to work and we have not seen each other since. So basically, the first and last time we saw each other was back in May. During this trip, he asked if I would be his girlfriend and I said yes. I think he wanted to "lock it down" before he left, even though at the time I was a bit iffy about committing so soon. I prefer to keep in touch as friends for a while first.

Anyway, we have been keeping in touch regularly via phone and Skype and it was good at first, but harder as the months drew on. To top it all off, my ex boyfriend found out about him and started to dig dirt on him (without my permission) and found out that he is talking to a lot of other girls online and flirting heavily with them. I tried to call my boyfriend out on it without giving him specifics or that I knew for sure, but he said none of the other girls matter and that they are just friends. He also was very lovey dovey and told me he loved me. So I put it in the back of my head and tried to be as normal and cool as possible. But my ex kept updating me with these details about him continuing to flirt with these other girls. It was nearly impossible for my resentment not to come out towards my boyfriend at this point and it definitely wore on the relationship.

The last two months have been especially rocky, as he has gotten bad about calling me and just seems distant. He also didn't seem as intent on visiting me this month, which he promised. He only finally relented after his mom forced him to come home to visit. He'll be here for a month, but he hasn't made any plans on visiting me or anything. He says he wants me to visit him across the country, but I cannot afford it. Meanwhile, he is still lovey dovey and would text me all the time, although he would barely call lately.

Anyway, I finally had enough of the BS and fakeness, so I wrote him an e-mail explaining that I have been acting unusual the last few months because I heard he is talking to other girls. I told him that he cannot have me as a girlfriend and talk to other girls at the same time and to make a decision. If he decides to keep talking to other girls, then I will talk to other guys.

It's been a day and he has not replied to my email nor called me. Would you say this long distance relationship is pretty much over at this point?