How we lose all our points in 2v2 master league after a lose

So we play with my friend few games a day and get some points right …
we reach 2nd place with like 50 points in master 3 league …and after 2 loses we lose all our points…how its this posible i cant find anything similar to read about tihs ?
some one…thx

whats your guys mmr right now for 2v2 also did you lose the points after you unteamed with him or before

its like 3200-3300…and we never unteamed …we always play with this team …we reached 2nd place with like 50 points …and after a lose we got 0 points …this its redicilous