long distance relationship with capricorn man

i am a libra who have a relationship with a capricorn man. We live like in different world, like day and night because i live in asia and he lives in america, i am young and he is quiet older than me. After couple of months communicating, we face a dilemma, because we can't see each other in real. We share out thoughts and feeling. He keeps asking when i can come but i cant give any fix date to come (bcause not that cheap to reach there).Once he said that he met another girl in his country, just know but nothing formal. He is confuse of this kind of situation while he loves me while i am quiet insecure. Any advise ?

Keep it that way! Loooong distance....