Is she at least interested?

There’s this woman at my job who I find to be gorgeous. I realized a month or two ago I developed a crush on her. We aren’t co-workers but due to work reasons it’s best I don’t cross any lines unless I’m absolutely sure she’s into me.

We started off with glances and saying hi/bye when she walks past. Then to small conversations about the area and the job. You know small talk. Then we started talking longer let say 30-45 minutes when we see each other about work, future plans and especially gym stuff. We both kinda started going recently so we talk about lot about that and progress. Especially motivating each to stick with it and even started a bet that ends in December.

I’ve always feel like there was this tension between us in a good way. Like we can’t take our eyes off each other and nervously glancing away and looking back. Even in a group setting if someone leaves she’ll stay to talk to me. At times it seems like the conversation is ending and my dumba** can’t figure out what to say next , I’ll see that she will try to keep it going as well. I won’t do anything yet based on answers but I want to make sure this isn’t all in my head and really get to know her more before I pull the trigger.
Is she at least interested?
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