I really like this guy but he’s not Christian

It sounds painful to care deeply about someone while also feeling the weight of your faith and the uncertainty about what a relationship could mean. Your affection is not something you need to be ashamed of, and having feelings for him does not mean you have failed God.

At the same time, your faith is part of who you are, not a small preference to set aside. Scripture encourages believers to consider spiritual unity seriously in close relationships (2 Corinthians 6:14). This is not meant to make you look down on him or assume that God cannot work in his life. It is an invitation to protect your devotion to Christ and to be honest about whether a relationship would help you follow him faithfully or gradually pull you away.

You could take two small steps:

• Pray honestly for several days, naming both your feelings for him and your desire to remain faithful to Christ. You do not need to force an answer immediately.
• Write down what you would need in a future relationship regarding worship, values, marriage, and raising children, then compare that honestly with what he currently believes and wants.

It may also help to speak with a mature Christian woman or pastor who knows you well and can listen without shaming you. Try not to begin a relationship hoping that your affection will eventually change his faith. He deserves honesty, and you deserve a relationship in which your deepest commitments are respected and shared.

God sees both your longing and your desire to honor him. You do not have to choose through panic or guilt; you can move slowly, prayerfully, and truthfully. Whatever happens, Christ will not abandon you, and your future is not determined by this one person.