Question about the Netflix series Shadowhunters?

I would like to ask a few questions and I'm not ready for the series yet for those of you who are now on Mimimi Spoiler save it I just wanted to answer some of the following questions:

"When does Alec ask Magnus if he wants to marry him"?

"When does Magnus get his magic back from his father"?

and "How is the connection between Jonathan and Clary separated and when?"

Thank you for your SPOILER help!

PS: I just want answers that come from the series not from the book.

1) 3x20 -

2) 3x14 -

3) 3x20 -

Googling a bit yourself before you are rude.