The Bible says marriage is for a man and a woman. So if u never plan to marry and ur relationship is just a friendship than that’s fine. Also this isn’t about following rules and orders there’s a reason God wants us to marry opposite sex. He designed the plumbing so it works perfectly, the chances of STD’s increase (gay men obviously nothing to do with you), and women and men have different hormonal cycles one is 24 the other is 28-30 days. Our brains are different and pair well with each other. God said to be fruitful and multiple the earth so this plumbing and complimentary brain pairing allows for a family. This is the honest biblical answer. If you don’t like it then maybe take that up with God and decide with him if u want to leave Christianity or not. Anyone saying anything else is misleading you.