Is she jealous in a friend way or a romantic way?

Helloeriss01
I assumed maybe this girl might have been jealous of my relationship but then I started to think she might have a crush on me.
We weren’t particularly close at work but we’ve talked and tease each other.
She’s like 5’9 and I’m 5’6 so she’ll tease me for being short and I’ll tease her for being tall.

I started talking to her at work less and calling my boyfriend more. Each time I called him she got me in trouble for being on my phone. She’s the manager and has gotten on hers but she always felt bad after telling on me. I’m close to the assistant store manager and she gives me a cute nickname. Once I walked in and the assistant store manager said hey and called me the nickname. My Manager ( the one I’m talking about ) heard and was like “why do you call her that? And she explained and then my manager kind of awkwardly said, “if I called kierstan ( me ) that, she’d slap me”

She’s only one year older than me and has a fun side but noone that young takes their job that serious so I assumed she was jealous.
She’s never asked me about my relationship. Once I asked another coworker how her and her husband met and after she told me, my manager butted in and was like “I didn’t know you guys met online”.
Also she asked another coworker of ours how her and her boyfriend met and she’s never asked me how I met mine or anything about him.
One of my coworkers was asking me a lot of questions about my relationship and how we met and stuff and my manager stayed silent the whole time. She knows nothing about my boyfriend.
Also once i was talking to her at the register and was like “my boyfriend buys me stuff” and she got quiet for a few seconds and then kinda awkwardly was like “I was gonna say, you’re the one with the discount”

She’s butted into a lot of my convos about school or sex with other coworkers but when I talk about my boyfriend, crickets it seems lol

Why does it seem like things are awkward when I mention my boyfriend or why does she seem jealous?
Is she jealous in a friend way or a romantic way?
2 Opinion