"She felt scared he might go to the house and carry out the threats."
When spoken to by police Rowlands said he was angry they had broken up but he never intended following through on the threats, he said.
Most of the messages had swearing in them but many threatened to kill her, including: "so text me whether you wana fix it slowly or whether you'd just rather die slowly?" and "as soon as I see you no one can save you from that point".
Defence lawyer Frank Minehan said his client was remorseful and had an alcohol problem which needed addressing.
"He obviously has ongoing problems."
Judge Walsh told Rowlands it was a "serious offence" carrying a maximum penalty of seven years' imprisonment.
He told Rowlands he needed to focus on his rehabilitation and realise the relationship was at an end.
"The complainant wants no more contact with you."
Judge Walsh signed a final protection order and ordered Rowlands undergo nine months' supervision with special conditions to undertake a stopping violence and drug and alcohol programme as directed by a probation officer.