Do I have bolivian Rams or German Blue Rams?

Pls help my other half was sold a "pair" of Bolivian Rams, but the more research I do the more I suspect we have been sold German blue Rams. The pair started off great but a few months down the line we are left with one. The larger one bullied the smaller one so much he died last week. I wanted to get another mate/s but I'm unsure of the what we actually have??
Here are some pictures.

 

Definitely German blues

 

Thanks any idea on what the sex could be I suspect a male but would love another opinion

 

Can't say 100% but i too am thinking male

 

So I've been to the fish store and had a good look at there Rams and the only difference my Ram has different from the other males there is his tail fin isn't elongated?? Do males always have a elongated tail fins?

 

Here's a picture from the side

 

im guessing female

 

make that male

http://www.aquaticcommunity.com/aquariumforum/showthread.php?t=21082

 

Thanks for the link