My man entering Dad mode before even sleeping with his wife! The danger of prolonged blue balls, I say
He even trying to get his friend married just so that they have children to parry off to each other.
In all seriousness, his plan to get FL and his family to warm up over his inadequacy worked.
It was a reference to around when they first met. Repaying the dept for helping her, you know, back when he was teasing her and she doesn't admit that she likes him.