The 25-year-old pleaded guilty to common assault at Liverpool Magistrates' Court earlier this month after beating Rachael Wall.
District Judge Wendy Lloyd sentenced him on Wednesday to the 12-month community order, which will include 15 rehabilitation activity days, 40 hours of unpaid work, £85 costs and an £85 victim surcharge.
She said: "You are, of course, a young man of previous good character and therefore it's undoubtedly sad that you have brought yourself here by your behaviour."