I agree completely. He does need prayer. God gives us "free choice" and for whatever reason he shuts down, I agree, its best talking to God about it. We need to remember too the choices we make, the consquences and how it affects others too.
I have been hurt in a similiar way. I think it has permanently scarred me to be honest. It was a person that I thought was very godly, but his action wasn't. And I think I remember reading in God's word, hate the sin but love the sinner.
I can tell you, his not mending the net, has affected my life, my children's. A permanent scar. More so than the action of breaking up.
I think, this is just my thoughts, that when we make choices, as God did give us free will to do that, He also gave us a mind to you. I believe when we make choices, we seek God and pray to Him about this, for wisdom, guidance and strength.
God is very clear in His word about mending the net. The scriptures are very clear without a doubt, what God wants us to do in that subject. We can make excuses, we can even say we are doing it because it is better for the other person, we can find other scriptures in the bible and interp them to suit what we want to think. For example, the circumstances not being easy at the time or can't see them changing. God is bigger than circumstances and it takes faith and believe that. Sometimes, God doesn't guide us in easy paths. It means stepping out and with Faith in the Lord, going ahead and believing, even admist certain circumstances. I think sometimes as Christians, if it's not easy enough or doesn't seem to be going easier.. we think it's not God's path for us. Not God's choice. Which is not always true. I can say I've been through adveristies, trials and real difficult circumstances and witness that with faith and believing and guidance and prayer, seeking and knocking and reading more of His word... those circumstances have changed. They don't always change over night or even in a month or even in a year. I think it was Sarah that wanted a baby and she was blessed later in life. But God did make that promise and it did come to pass.
I think God leads us on paths that sometimes are easy, sometimes not.. but they are fruitful, with faith and obedience then blessing.. We are not saved by works, but if we are on God's path, when we leave our comfort zones and give our all and trust God with all our heart, giving ourselves completely to Him, the path He leads will be of works.
I took a real journey, without going into details, but I believed it was God's path for me. I still do. Even when circumstances were against me, once I kept walking anyways and I went ahead on that journey.. I found along the way and during the time I was there.. I met with people who just came.. situations and incidents too place where I was able to help or talk about God or there was always something and I had no doubts that I was to be there. Whether small or big, it is a joy to be used by God. And even though my heart's desires of being with a man who I thought was the right choice for me, I still do.. he would shut down too and he didn't mend the net. I still went anyways, I knew what God wants us to do abot that. I was there. I did not force, pressure... I just was there. I figured God created earth and heaven, I feared if I was not obedient, I feared God.. so I was obedient, but also out of love for God. I figured God would help us mend the net.
But because people have free will.. like God, He wants us to come because we love him, because we want too. And like Him, we are to show that love in the same way. We are not God, we do have God and He can work within us. If we chose to go the other way, chose not to listen or see or hear what God tells us, another person cannot make them do it, but we can be there and leave the door open and be ready to forgive. We even need to forgive even when we don't see that person.
All I can say with all this I've written.. is his not mending the net, has hurt us badly. It's like the iceberg, we don't always know what is underneath. While he may not be the type that is ready for marriage yet and is not showing Christian love, never mind the other.. then we still must pray for them and never cease praying. And be what God teaches us to do.
I am sorry your daughter has gone through this. If it is any comfort, I can say I've gone through similiar and it hurts badly and still hurts. Not the kind you hang on too, but the hurt that sort of pains us inside. Only God can heal that and we ask Him. Sometimes he takes that pain from us and sometimes like the thorn, he doesn't. It is ok though.. we just trust God about this all.
And not treat others like that and be always willing for a forgiving heart. Maybe not to get back together in a relationship and marriage, etc., but with a love that God teaches us to show and share.
I hope that what I've said, makes sense.