Hi there @Lone_soul and welcome to ReachOut 🙂
It is wonderful to hear that you've found someone you're in love with who feels the same towards you 🙂 I can understand how having a long distance relationship can be difficult, it's okay to be worried about your future, 4 years does sound like a long time. @Tasi has already given you some amazing advice on opening up to him. If you didn't feel comfortable talking with him, could you talk to someone else close to you about your feelings? Having someone you can open up to, such as a close friend, family member or a professional counselor can help cope with some of the feelings.
ReachOut also has a great article over here on long-distance relationships that has some tips you might find useful if you're interested 🙂
I've also sent you an email to the email you signed up with, please keep an eye out 🙂