Scorpio man acting...

Hi guys, I am a capricorn woman, I am very confused of this scorpio man, we have met online 7 months ago because we collaborate in the same kind of community, he is in a very high position, me too, but less than him, we have been talking for 7 months once a week, mostly texts of work, a few calls, likes on social media, but everything with a warm and friendly undertone, sometimes flirty... I have read a lot about scorpios and I know about their trust issues, so since day 1 I wanted to show my loyalty, I have helped him, I have been present whenever he has a problem or a victory, some days ago I even confessed to him that I really enjoy talking to him and he reacted very good... we have never met in person, but if he wanted to, he could come meet me because our countries are neighbors, but also he is very busy, always flying from one place to another because of his job. I must say that all these months 90% of the times I have been the first reaching out, but he always replies so gentle and warm, that I thought he was as invested as I am. Four days ago my grandma passed away, he knew that she was the world to me, not because he asked, but because he liked my pictures and posts with her and one day I told him about what she means to me, etc... he obviously knows that my grandma passed away because we are in a whatsapp group (of work) where people started sending me condolence messagges etc... (even people that do not know me personally), my social media, my stories that he has already seen, and he has gone completely silent, 100% he has not even reacted to anything, in fact a day before, we had texted a little and he has completely gone away. I am confused, because all this 7 months whenever he has had these come and go, pushy moments I have always been calm and present subtly reassuring him that I really like him, also due to the sensitive scorpio personality. To be honest I do not know what to do, because this is showing me that he does not care at all and I am thinking about disappearing too, I feel that everything has been a complete lie, maybe because the only reason he talked to me was because of the collaboration networking convenience.