Several Questions

First, how should I react if accidentally bump into her, or ended up hanging out with her (due to mutual friends)?

Second, I don't know whether I've moved on completely, or parts of me still hanging on. Should I get rid of the presents and gifts from her which I kept out of reach all this time?

Third, should I remain close to her siblings?

About Mutual friends, there are close friends of mine who will be her housemate, and it'll be hard to hang around normally. Suggestions?

I hate to admit this, but there are some times I feel very lonely and sad. When I feel completely hopeless and vulnerable. How do I overcome this? I hate these sad and lonely nights which usually end up with tears in my eyes.

I'm not hoping for direct answers or instruction, just some guidance which would point me to the right direction.

Thanks in advance.

You know, motors start running smoothly when they have been 'on the road' some time already. It's the same with feelings I think. Having gone through a difficult experience (meeting her siblings, staying friends with her future flatmates etc.) will slowly (way too slow actually) make you experience this without the hurt it will obviously cause you the first time and few times after that. You will 'get used' to it. That's what I think (but obviously that's not a scientifically proved test). So yes, I would bite through the fire and go ahead with meeting your best (mutual) friends and taking out those presents.