Back to the story:
I made a thread here on the board on how my end-of-the-year Christmas bonus payment was used to buy Bitcoin instead of spending to buy new clothes as my friends and colleagues did back then.
Now I am profiting from my Bitcoin investments then and one of my colleagues is now in dear need of financial help, he needs some help, not life-threatening but money, and now I am not ready to loan him any money as long as it affects my overall Bitcoin holdings.
Assuming you use the money to buy a house, will he ask you to sell your house and loan him the money? I guess he will not and that shows he has no regards for Bitcoin as an investment. You must stand your ground and treat your Bitcoin investment as though they are physical asset that will not be sold easily but held for a long time. This way you will be able to manage and protect it properly. I had once sold part of my Bitcoin to borrow money to a friend who even struggle to pay back after much quarrels and arguments and I ended up not putting the money back into Bitcoin. I'm not saying that helping friends is bad but it should not be at the expense of your own investment which you made for the sake of your future.