Magnus and Jace - Shadowhunter's and Relationship's.

What is it about how Magnus sees Jace, as information about Magnus comes out, through his relationship with Jace we see a vulnerable side that we hadn't seen in the first season? 

 We also see that Jace has the confidence to talk to Magnus when he is boarding with him as he doesn't feel welcome at the institute.  Jace is the typical Shadowhunter that sees Downworlders as second class, yet Magnus having the relationship with Alec in the second season is a great thing as we see that his parabaiti can sense he is happier it is alluded to that they have gotten physical. 

Yet it is funny to me that this clip is Jace taking on the role of a big brother due to the way that the bond that they share is, they are bonded for life so essentially Jace can feel when Alec is unhappy and Alec can in the same way. 

Jace can sense that Alec is happier, yet we can see how  Magnus is so tied to the Shadoworld and now navigating the relationship with a Shadowhunter as he has interacted with them in the past but not as deeply as with Alec, over the centuries Mangus would have seen not the Shadoworld change but the "mundane," world as well and this would be hard to keep up with and this is why he as a warlock would demand payment in rare objects, especially from the Shadowhunter's as he has seen them treat people very badly.  Even hunting them for sport until the accords were brought into force.  This is what Magnus is referring to when Alec in the first season comes to him for help when Isabelle is put on trial for treason and it is essentially a sham trial. He is also at this point in time to attract Alec as in the first season Alec was hiding from himself. 

At this point when Jace and Magnus are talking we see that Magnus is starting to trust the Shadowhunters as he hasn't in the past. He has been used and abused for most of his life and this is why the Shadowhunters seem to see him as a Lothario type of character. 

We see Issy gig, Alec, about his interest in Magnus as I have talked about before with Alec in the Shadoworld, Alec is hiding from himself and who he is interested in. 

We also see that Magnus hasn't seen the reality of the parabatai bond and oath, but does understand it on an academic level. In this episode, we see that Alec has called out to Jace and it seems that he got lost and by doing things out of anger the bond can be broken so Magnus accepts that Jace will always be a part of his life.