The context of the following conversation is Austin was leaving the love of his life in San Francisco. Austin boarded the train.:
Austin says This has been really hard for me, but I know I have to do it..
The friend responds Why has it been hard?.
Austin responds Well, I had to leave the one person who I've ever loved here in San Francisco. I don't know if I'll ever find anyone else..
The friend responds You will, I know it. It's really a difficult decision, but if you need anything just let me know..
Austin responds Thank you. I know you'll be there for me. I have to go get on the train now - it's about to leave..
The friend responds Good luck! I'll be waiting to hear from you..