What do you think of this?

For quite some time now I have searched & searched for sheet music for a certain song. I have received not only a copy of the sheet music from the late Composer's son, but have been granted permission to use it. I was so excited about this, & shared it with my roommate/best friend. She mocked my excitement as though it wasn't a big deal. That hurt. It was only a week ago that her son asked her if it would be possible to do something MAYBE 4-5 years down the road. My friends boyfriend commented on this; but my bestie said "everybody's got dreams., there's no harm in dreaming", yet she saw fit to downplay my excitement/accomplishment.

Also, a friend of mine gave me a very generous Christmas gift. I shared the information of the gift with my bestie & got.."she doesn't know you well enough to do that" (the one who gave the gift most certainly does know me.) I think my bestie's reaction was jealousy.

I'm a little hurt. Should I keep quiet or tell her how I feel. I'm of two-minds not to share things with her anymore. What do you think of this?