I am very sorry for what you had to go through, Frei. It's probably going to sting for quite a while yet, and there is little you can do about that other than grin and bear it and try to move on.
In the meantime, look on the bright side; you're single and you're a gamer/submarine nerd with a whole internets' worth of friends. Now, I know what you're thinking-"that sounds completely lame and would in no way cheer me up" but that's where you're wrong. As it turns out, women
love both gamers and submarine nerds. I know this because my roommates often watch me play GWX and SH5, and then leave the room holding their sides and giggling . For those of you not familiar with the ways of women, that's called a "female orgasm" and it usually happens in the bedroom.

Yep...... they just love the way I shout helm commands at my computer in German.
It'll take time to get over the loss of your girlfriend, but with the typical subsimmer's appeal you'll be loading some beautiful broad's stern tubes in no time. And then you can work on finding another woman.