He texts me a lot but doesn't really interact in person?

Context: Last sem of college, I had a lab partner who I went from acquaintances --> friends --> closer friends who highkey had romantic tension (we touched each other a lot and would write our lab reports together just to talk and hang out and cuddle up together on the sofa) with. We only texted about lab stuff, never anything personal, and so when lab ended, we kinda never communicated again.

Until this sem, where: we drunk-reconnected at a party and he leaned all over me on the couch (to the point where my friends all kinda freaked out), then we interlocked fingers on the way home. Since then, we've been texting every day. Just casual things about our life, school etc. Our version of texting a lot is texting once a day, but in a series of like 7+ messages at once (we're both engineering students and quite busy). He engages with the conversation very well (there are many things he's said that are so kind and show he truly cares about me) and makes sure to keep it going by asking questions and typing big long paragraphs about what I say.

Anyways, my question is... why tf does he text me so much and with such kindness but then never really interacts in person? We are both very busy so I guess it makes sense that we don't have the time to hang out, but sometimes I'll be with my friends and wave at him and he can't even look me in the eye as he waves back. I also cannot read his vibe at all whether he's into me romantically or just platonically and it's killing me!!! Is there a reason guys do this? I can't imagine that he's playing me because he's not a womanizer? Our mutual guy friend also said that he was messaging him about me (I didn't ask for details as it's personal and it's not like I don't do the same with my friends). But Ahhhhh!!!

He texts me a lot but doesn't really interact in person?
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