Does he still love me? The answer is yes, he does love you. But if you start making such drama out of it, he will not. If your other half is in crypto trading he is most likely showing some of the symptoms:
Congratulation, your boyfriend is on the way to make trading his primary thing. While he is not comfortable 100 % with it and knows all he thinks he needs to know, and beyond, you will be on pause as a first thing he thinks about. If you love your boyfriend, keep calm. The reason why he is doing so is to make some extra cash for souvenirs and early retirement.
He still loves you, but he needs to take his doge(coin) out for a walk. First, he needs to find out where and how to do so. He is honest with you, and you know what is going on in his head. This situation will not be the case forever, but in the stage when this is important to him try not to make a fuss about it.
He will look worried, and for the moments even angry. Remember - This has nothing to do with you. It is the market, and for those trading, the timing makes a big difference. Few percent either gain or loss is a lot.
Ask. Show the interest in what occupies him. If he can't talk to you about the things which make him happy, then something else is wrong. It doesn't matter if you know nothing about the charts and trading. I always say he can explain to me like I'm a six years old kid.
For those whose boyfriend has coins but does not show any of the symptoms, he is a hodler, and potential trader. So learn now, while you still have time :)