Is this Libra interested in me?

I’m a Sagittarius female who is interested in and feeling frequencies coming from a Libra male I work with. Please let me know what this sounds like-

1. He gives me big gorgeous smiles although he tries to suppress them behind a shy adorable smile at first before the smile breaks through. Basically tries to have a poker face but he visibly lights up when he sees me and can’t contain the smile. Seems very excited/giddy when I catch him off guard and run into him at work when he’s not expecting me.

2. Any chance he has to stand directly behind me-he will take it! He gets quite close, and he chooses to be right next to me (especially directly behind) when there’s plenty of other places to stand. Maybe he just likes my perfume or maybe he likes to listen to me talk and observe me from a safe distance. I would love to know how Libra men use their body to express things rather than communicate through words, because I feel like that’s a thing with him.

3. He listens carefully to conversations I’m having with other people without engaging but then later asks me follow up questions about those conversations, so it definitely seems he’s keeping a quiet watch on me.

4. He gets visibly nervous and insecure in my presence and will start touching himself/his hair/scratching his neck/ smelling himself but his body language is always angled toward me.

5. when we do make eye contact, although he often tends to avoid looking directly at me, he gets this dazed look on his face. When we lock eyes I lose my train of thought and he seems lost in my face- like almost in a daydream. Like he’s engaging partially but he’s also off in another world. His eyes look like they’re full of love and admiration and I’ve never experienced this with another man on this level and it’s super intense. For this reason we tend to orbit each other but don’t lock eyes very much. It’s way too much for both of us, I think.

6. Lately he has been asking me more questions about my life outside of work and he seems very serious and nervous like it’s hard for him to open up, but I really appreciate that he wants to know more.

7. I brought him grapefruits from my tree and he was so excited he was literally just gleefully bouncing around the room, hahaha.

8. He’s always so calm and relaxed with others but with me he either avoids me or is quite literally having a physical reaction being near me, of all extremes.

He has a situationship so I have no plans to have discussions about feelings, and since this is such a new connection I plan on taking things nice and slow and just seeing what he does, but any and all insights on a Libra man are greatly appreciated!

BTW he has Sun, Mercury, Mars in Libra, Moon in Libra on cusp of Scorpio and Venus in Virgo.