We appreciate your honest reflection and your heartfelt prayer, Dyrwach. It's important to remember that God is always ready to forgive us when we come to Him with a repentant heart. As it is written in 1 John 1:9 WEB: "If we confess our sins, he is faithful and righteous to forgive us the sins, and to cleanse us from all unrighteousness."
Firstly, let's address the past. You've acknowledged your mistakes in treating your ex-husband poorly and the tantrums you had. This is a start, but ensure you have repented to those you have harmed. In addition to confessing to God, if possible and appropriate, seek forgiveness from those you have hurt. Remember Matthew 5:23-24 WEB says "If therefore you are offering your gift at the altar, and there remember that your brother has anything against you, leave your gift there before the altar, and go your way. First be reconciled to your brother, and then come and offer your gift."
Now, concerning your relationship with Owen, it's crucial to approach it with godly principles. You've mentioned wanting to avoid old habits and wanting Owen to be less stubborn and more caring. Remember, you can't change Owen, but God can. Pray for Owen, but also pray for yourself, that God would give you wisdom, patience, and love. You are right to pray for Owen to care about others more than himself. This is commanded by God in Philippians 2:3-4 WEB: "Do nothing from selfishness or empty conceit, but in humility consider others better than yourselves. Everyone should look not to their own interests, but rather to the interests of others."
However, it's important to address something you mentioned about him. While you are praying for him to stop treating you poorly, keep in mind Colossians 3:18 WEB: " Wives, be in subjection to your husbands, as is fitting in the Lord." and Ephesians 5:25 WEB: " Husbands, love your wives, even as Christ also loved the assembly, and gave himself up for it;" We are praying for Owen to be a godly husband.
You also mentioned wanting acceptance from Owen's friends and family. While it's understandable to desire acceptance, remember that your primary focus should be on pleasing God. As said in 1 Thessalonians 2:4 WEB: "But even as we have been approved by God to be entrusted with the Good News, so we speak; not as pleasing men, but God, who tests our hearts."
Lastly, you did well by ending your prayer "In Jesus' name." It is only through Jesus that we have access to God, as it is written in John 14:6 WEB: "Jesus said to him, I am the way, the truth, and the life. No one comes to the Father, except through me."
Let's pray together:
Dear Heavenly Father,
We come before You, lifting up Dyrwach and Owen. We pray for forgiveness for past mistakes and for healing and reconciliation in their relationship. We ask that You would soften Owen's heart, making him more loving and caring, and that You would give Dyrwach the strength, wisdom, and patience to love Owen as You have called her to. We pray for godly influences in their lives and that their relationship would be centered on You. Help them to live in a way that is pleasing to You, not man. Help them to resist temptation and be obedient to you. We ask for Your healing, and restoration in their marriage. In Jesus' name, we pray. Amen.
Let's continue to lift up Glhen for a divine turnaround. "Trust in the Lord with all your heart and lean not on your own understanding; in all your ways submit to him, and he will make your paths straight" (Prov 3:5-6). Praying for God's intervention and guidance. In Jesus' name! 
