Did I jump the gun with this girl, did I screw things up?

This girl i like has a boyfriend, she told me last week things were not going well and was very sad and i could tell it by her face. Earlier this week i decided to ask her for dinner and she did not get back to me, she also avoided me in person for 2 days straight. She spoke to me today but was short and not even about the dinner. I know its a awkward situation to begin with but did i screw things up for good? She seemed like she did have interest in me before hand. I do think about it and feel bad because i was out of line for doing that.

Updates
+1 y
Anyone else?
Did I jump the gun with this girl, did I screw things up?
Post Opinion