In a victim impact statement read to the court, Mrs Playle said she would never understand why her husband did what he did.
She said: "I am terrified to leave the house, go to work or the shop across the road. I panic when my phone goes off. I'm embarrassed and I burst into tears for no reason.
"To think it was the one person I believed I could always trust. I no longer trust anyone any more."
Gareth Burrows, prosecuting, said Playle had deliberately set out to humiliate and control his wife, while comforting her at the same time.
In the messages, sent between Dec 2015 and June 2017, Playle would often question her about previous sexual encounters and he called her a "slag". He also contacted her parents' work colleague and set up other accounts pretending to be a girlfriend and friend of Reynolds.
In one message, sent when she was out shopping and holding a new bag, he wrote: "Nice handbag, do you want to meet in Starbucks for a coffee?" He also made comments about seeing her jogging and hid her passport to try to stop her going on holiday with friends.
Police eventually caught him after the "stalker" sent an image of the entrance to Gatwick Airport to Mrs Playle.
Officers were able to track Playle's car arriving at the terminal and spotted him on CCTV taking the picture.
Playle repeatedly denied responsibility, claiming he had been "stitched up", but a jury took less than 30 minutes to convict him of stalking and coercive and controlling behaviour.
Before knowing her husband was behind the messages, Mrs Playle said she would "panic" if she had not heard from him or their three children.
The pair met when they were 16 and she said she was faithful to him during their marriage, adding: "We had hard times but thought we had a stable family. My children are devastated. My eldest daughter is a totally different person since the trial."
She asked her husband to admit what he had done so everyone could move on.
Sentencing Playle, Judge Christine Henson said the evidence was "overwhelming", adding: "You are the author of your own fate. You watched your wife effectively crumble before you because of the fear she was experiencing from this online abuse.
"You pretended to comfort her. That is the most calculating and cruel behaviour. [These offences] were committed out of jealousy and a desire to punish her for what you perceived as wrongdoings."
Playle, of Bexhill, East Sussex, lowered his head and cried in the dock.
Mrs Playle, a nursery worker, who watched as her husband was led to the cells, said she had been affected so badly by the "unbelievable" ordeal that she had considered suicide.
What is coercive control?
Professor Evan Stark of Rutgers University in New York defined coercive control as 'a course of conduct in which a pattern of violence, sexual coercion, intimidation, isolation and control are used to dominate and exploit a partner and deprive [him or her] of basic rights and resources'.
Isolation from friends, family and colleagues is a classic method by which abusers exert control over their victims.
Other characteristics include excessive jealousy, taking away the victim's phone, withholding food and toilet access, stalking, restricting access to money.
Where to get help in NZ
If you're in danger now:
• Phone the police on 111 or ask neighbours of friends to ring for you.
• Run outside and head for where there are other people.
• Scream for help so that your neighbours can hear you.
• Take the children with you.
• Don't stop to get anything else.
• If you are being abused, remember it's not your fault. Violence is never okay
Where to go for help or more information:
• Women's Refuge: Free national crisis line operates 24/7 - 0800 refuge or 0800 733 843 www.womensrefuge.org.nz
• Shine, free national helpline 9am- 11pm every day - 0508 744 633 www.2shine.org.nz
• It's Not Ok: Information line 0800 456 450 www.areyouok.org.nz
• Shakti: Providing specialist cultural services for African, Asian and middle eastern women and their children. Crisis line 24/7 0800 742 584
• Ministry of Justice: www.justice.govt.nz/family-justice/domestic-violence
• National Network of Stopping Violence: www.nnsvs.org.nz
• White Ribbon: Aiming to eliminate men's violence towards women, focusing this year on sexual violence and the issue of consent. www.whiteribbon.org.nz
This story originally appeared on the Daily Telegraph and is reproduced with permission.
