A serial dating app stalker who sent a barrage of abusive text messages to 18 women over two years has been released from custody after just six months behind bars. Adam Geoffrey Rybicki, 33, from Banksia Grove in Perth, pleaded guilty to 22 stalking and drug offences and has been in custody since June. But the Perth man spent only six months and 23 days in jail after Joondalup Magistrate Sandra De Maio let the convicted stalker walk free on Thursday on a 16-month conditional suspended term of imprisonment. Adam Rybicki (pictured) would threaten to send explicit images of his victims to their family and friends