Guild Wars 2

If I lose a game why do I get matched with in my very next game some of the same people I lost that game with

Because you two (or three or four) queued at the exact same time and still maintain the same mmr. So matchmaking sees the potential team and queues them up.

Wait 5 or 10m then queue

Edit: Or add them to friends so you can see when they enter a match.

Would be nice if the system could see we just played a match together and at the very least put them on the other team

The game is D E D. 10+min queues during prime time