So I have been with my S/o for 3 years and about 3 months before we started dating my s/o (19 at the time) had a drunken one night stand with a girl(17 att) he didn’t really know and it resulted in pregnancy. That night he was really drunk and had said no to this girl multiple times according to onlookers at the time and about an hour later he was in a room with her and later that night came out crying as he doesn’t know what happened.

So BM said originally she was getting an abortion and my S/o supported her and said he would support her with whatever decision she decided to make even though he didn’t really know her nor remember their night together at all. So she then decided to keep the baby and things were going alright and about a month later she asked my s/o for money to get the baby a pram which is something my s/o is superstitious about and he says he’s rather wait till the baby has arrived. So BM said well could he give her £900 cash that she could set aside for the pram she wanted. At the time my S/o was working on minimum wage and supporting his mother as he still lived with her and said he couldn’t pay that kind of money and would prefer to but cheaper alternatives. This then led the baby mother to show up to his door screaming and shouting that he wasn’t supporting this baby and scaring the shit out of his mother and family that were still at home. He told her to go home and that his income unfortunately doesn’t allow for him to make these kind of big purchases.

Fast forward a couple weeks later and this girl is showing up to his workplace screaming and shouting and doing the same in the local pub which resulted in him losing his job as he was still in the probationary period. By this time I was officially with my S/o and was in the same university as her and she took to following me around and asking me about my S/o and telling me how horrible he’d been to her when I knew he hadn’t. And throughout her pregnancy we were just being harassed (baby toys being thrown in the garden, groups of older men waiting outside the house, slander on social media) as well as one of those groups nearly landing my partner in the hospital from an assault. then lockdown came and all went quiet.

My partner was traumatised and said he wanted nothing to do with her and the baby which at the time was fair enough she brought so much upset to the household but at the end of the day it wasn’t the child’s fault. When the baby was born my partner messaged her to say hey I would like to meet them and be involved I’m willing to pay £50 dollars a week In Child support as that’s all I can afford to give you and they came to mutual agreements.

Then on Christmas Day BM tells my S/o to come and see the baby as it will be the last time he will probably see the baby as she’s moving over like 600 miles away. My partner can’t drive and would not have had the means to commute at this time and he said his goodbyes.

We found out a few months later she’d only moved two towns over from a Snapchat story and that she’d been telling people my S/o wasn’t paying her any child support. And my partner tried to get in contact but every time he did it was like he seen her for a couple hours and then was shunned out and he decided for the sake of the child he won’t disrupt it’s routine it’s making with its mother, pay his child support and stay out of its life as it would end up being traumatising for the child him coming in and out of their life all the time.

Now fast forward two or so years later to present day and she has filed a child support claim again my s/o even though he has never missed a payment stating that she is due £3000. His wage has never increased since he got a new job and he is making £250 a week and still paying the £50 every week. And the BM said because he didn’t want to see the baby he needs to pay in more in support even though he did want to see the baby it was her who stopped him and harassed him. The claim is being put through an agency so we are confident it will be debunked as legally he has actually been paying £4 more a week than he was obliged to.

So my question is is my S/o being unreasonable for just wanting to pay his maintenance and stay out of the child’s life? He is genuinely scared that getting involved with the mother again will result in myself and his family getting harassed again.