I cant tell if this girl is into me or not?

So me and this girl go on a date a week or two ago, I thought it went great and we had a good time. We went out to eat and snuggled while watching a movie. But recently she seems like she doesn't want to hang out. Her schedule is semi- busy but she just seems to give lame excuses on why she dosnt want to hang out. when we talk online or via text we seem to still hit it off great. Should i ask her whats going on or just wait it out and see whats going on? right now its killing me to know cuse im really into her.