Need some guidance

Sex before marriage isn’t what God wants that’s why he feels that way. If he’s married then idk. But if he’s not married then that’s probably why u feel this way God wants you to wait till marriage.

Having exclusive sex with your gf isnt a “sin”

What's your faith?

In my opinion there’s worse things in life than having sex with your partner. Living has changed so much since the Bible’s inception. God still loves you, regardless of the circumstances, you’ll be okay as long as you go to Him with these concerns as you do with us.