Is my coworker flirting or am I overthinking?

I (28F) have a coworker (40M) who I enjoy being on shift with… We shit talk together about many topics and bond over dry humor and a common disdain for the majority of our coworkers/clientele. For the past few months I’ve had suspicions that he’s been flirting with me, due to:

Saying things like “I didn’t get a chance to chat you up today,” calling me by name over to his department just to say “have I ever told you how much I appreciate you?” Or “you’re the wind beneath my wings” One day when he told me said this, I said “and I you, so what do you need?” He assured me he didn’t need anything just wanted to be nice and was in no way “trying to butter me up” and I said “ok good because I’m not a biscuit” and he said “no, you’re more like a sweet and delicate lobster claw” 🤨 like huh? In response I asked “did you stay up all night writing that or did it just come to you?” And he says “off the dome” i said it was smooth and he said “it was something but maybe not smooth” ??? Not sure how to read that interaction tbh.

Schedules have changed so we are barely on shift together but maybe twice a week for over a month now. Even in the breaks between seeing each other he’s rather attentive- He’s noticed things that other coworkers have not (haircuts, nails, my moods/ mannerisms- which he pointed out as “cute” and “it makes my day better when I see you doing that”) Noticed my homescreen on my phone, which is a pic of my kids whom he’s met before, and said they’re “so adorable” (that’s just obvious I don’t think he was flirting there, but why are you looking at my phone???)

I was sick earlier this week and he needed help from my dept w a project, so before I left early I told him to get w someone else from my dept when he was finished and they’d do what was needed, he started to say something and then told me just get some rest and get outta there. Next day our shifts overlap a little; upon seeing me he asks if I’m feeling better. I said yeah much, thanks for asking. “That’s great news I’m so relieved” and I asked him what difference it made to him. “I don’t like when you’re all mopey, yesterday you looked like your puppy ran away you didn’t even smile at me once”

Corporate mandated some changes to his dept so I later pointed them out to him and he asked for my opinion on the change before offering his own. “But are YOU happy with it because that’s what’s important to me” again I asked why it makes a difference to him, and he says “your happiness matters to me,[my name]…whether for 2 minutes or 2 hours it matters to me” again..??? Before I left for the day I asked if he needed anything before I go, “yeah but it’s fucked up to ask you” and he approaches me w his hands out saying his hands are cold. He grabbed both of my hands and we just held eye contact both smiling (I hope I was smiling not cringing, his hands were v cold) I said “ahh why” and he just said “idk” still smiling, and then halfassedly walked me out? He stopped when he realized there was another guy in there too (or that’s how I’ve analyzed it)

Idk if he’s being flirty or if it’s just banter? I notice him joking w other people at work (both male and female) but I don’t see him touching anyone’s hands lol.

I feel silly asking this bc I think that he is flirting but my bsf says I think everyone is in love w me bc I’m a Capricorn 💀 and because it’s a corporate setting and I’m a chicken shit I don’t want to bluntly ask him “are you flirting w me?” Also I enjoy what we have and don’t necessarily want to confront it and our friendship change in any way.

What say you?