I thought he liked me, now I'm confused. Possibly just an ego stroke? Help please?

For the last 3 months, I've been getting to know & like my co-worker. We are both in the same position, but work in different locations. We have met in person before, briefly. As we work together quite closely, we have video calls every day (1-2 hours). During those calls, it often ended up being about work for a short while, then talking about anything and everything under the sun for the rest of the time.

We didn't necessarily flirt directly with each other (I think), but we did both make comments about each other that could be interpreted as flirting, I think. Such as saying "I love sarcasm, it makes me go weak in the knees" "You make my day better" etc. I think we are both single, as in my experience, as soon as you ask about weekend / vacation plans, colleagues will mention a partner if they have one, and he never did, also only spoke in "I" form, not "we" when mentioning any activity. He was also always really helpful and going out of his way to make time for me.

At some point, we exchanged instagram, where we both only post about our hobbies. Talked a bit about that, sent each other memes from time to time.

Last week, we had a particularly busy day at work, so I didn't look at my phone while at work at all. After we both finished work, he sent me a funny meme there, and I saw he had also updated his story. He had uploaded a few before that I liked / interacted with, but they were regular stuff like a cool tree / weekend activity. So I clicked on it expecting something along those lines, but instead, it was a very sexy shirtless gym selfie + before / after. I reacted on it by saying something like woow, good progress! with some flirty emojis. He thanked me, chatted a bit, and I felt emboldened enough to post my own (regular, no gym) selfie 2 days after... and... crickets. He did look at it, but no reaction.

So now, I wonder if he actually liked me at all, or just sees me a nice ego boost? :/ Any opinions would be very welcome.


I thought he liked me, now I'm confused. Possibly just an ego stroke? Help please?
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