Too many people are too quick to wish 'forever' with a person. I'm not saying planning a future with someone is a bad thing, all I'm saying is know the person, really know the person, know who they actually are on the inside, when all the doors are closed and all the weight of the world is gone, know who they are at that moment. Don't plan a future with someone you don't know because if it doesn't work out then you set yourself up for heartbreak. If it ends, not only did you lose the person you love but you also lost your future, your plans, who you thought you'd be and you become lost. Again, I'm not saying don't plan a future with someone you love because it's a beautiful thing and you really should, all I'm saying is don't plan a future with someone who you don't know their views of life, their intentions (especially towards you), their beliefs, what they'd die for, who they'd cry for, who they want to be and how they invision their life. Everyone is wishing for fairytales and happily ever after but you are not Cinderella and one night and a glass slipper won't guarantee forever (or happiness). Happily ever after is earned, you know the person and you love the person and you have gone through **** with the person and you would pick them on their bad days and their good. You would pick them on cheerful days and on days where they're curled up in a ball, crying and feeling like their whole life is falling apart. If you aren't willing to go through hell for a person, no questions asked then save yourself the heartbreak and don't plan anything. Some people are meant to be in your life short term, they're only there to help you learn and grow into the person you're meant to become, they're there to help mold your heart into the perfect shape so it fits just right into your happily ever after's. Not everyone should and would be in your life forever. Learn the difference and prioritise appropriately.
Just my 2 cents