Fisher of Prawn

I met this man a good man with a noble work. Everyday he goes out early in the morning out in the ocean to catch prawns. The weather is mostly cold there is summer but still u need to wear a jacket coz it's still cold, so imagine when he is out early in the morning it must be freezing out in the middle of the ocean.
This man when he talks about his work his very passionate about it and he really enjoyed what he is doing. Everyday we talked after his work is done. He seems to have everything but he don't have a partner in life. We talked about his work that day and so is my work. We talked about everything and we liked each other that way.
One night I've been asking him to take a picture of those prawns, the ocean and even selfie while at it. He did took photos and when he showed me I was even more amazed how wonderful his work is. I'm really falling for this guy. I don't intend to fall for him cause I'm very satisfied with my life even my job. When we talk I even told him I'm going to introduce him to my colleagues that he might be interested with but he is so into me he can't see others. He is my best friend and I don't want things to change so I never acted differently despite my feelings for him.
He ask me to watch a video on YouTube. The video is about how his work done and that video break my heart, I cried for few days and I can't eve talk to him. I saw how they catch those prawns and it's very hard it's so hard that every they go home with blisters on their hands. His work is so noble but thinking of everyday he will go home to me with that hand I think I'll die soon coz it slices my heart to see it. So I made a decision to just disappear from his life. I can't ask him to change his job his passion and I don't think I can survive a year without having a heart failure. So I'm gone.
How do u survive that?