Is she shy around me?

Im a bisexual girl and I just became friends with a girl at college (who I’m currently crushing on). She is super nice to me in person but is really shy. First day of class she approached me and introduced herself after I complimented her outfit then I gave her my number but I noticed she could barely maintain eye contact with me and looked down at her phone a lot and kept saying “sorry if I’m holding you up” . Before talking, she lingered behind me before she was confident enough to say her name and shake my hand. When she did text it was short responses and it’s been 2 months since she responded back (it’s on iMessage so I can’t tell if she read it or not) however she still does smile and wave at me when she pass by each other. If I am right behind her when we leave class and she’s aware, she walks slowly and matches my pace as she looks down at her phone before I initiate the conversation. However when we’re not next to each other after class, she leaves quickly. She maintains full eye contact when we talk and stuttered a little last time I made small talk. These are a few signs🤔

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Also, we used to leave our class out the same entrance we first officially talked at but I stopped going there because I thought there was a shortcut to my next class which wasn’t the case. After I stopped going to entrance we both went to, she stopped going there too but now I’m back to going out that way. One time after class I talked to her and ask if she was still going out that way too (so we can Talk and walk) and she implied no but after our next class she finally went out that way again
Is she shy around me?
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