I think my coworker might have a crush on me. F(26) m(?) lol

r/

Ok I may be reading waaayyy into this but honestly my gut never lies. I’ve recently started a new job and leadership put me on a big project with one of my coworkers who started a couple of months before me. It’s a startup and there not much training and this particular project was more my niche and I actually feel like I know what I’m doing so I’ve focused most my time and effort on it. The coworker they put on this project with me (it’s just me and him) has been super kind from the beginning, I even remember telling my sister how I couldn’t believe how patient he is with me and that he’s so nice even tho he has a job that’s more taxing he’d always get on teams meeting with me, he’d even be the one to set one every day even when I don’t reach out but I figured we have a project to do so he’s really on top of it (which he really just may be I don’t want to take away from that). I’ve been super comfortable with him and he’s been pretty chill. When we message on teams we always use a thumbs up emoji ALWAYS!! For a month now, and we’ve been getting on calls every day sometimes multiple times a day. But today, he sent a red heart response to my message which I get might not be a big deal it’s just a heart emoji I just honestly think it’s odd lol I might be the bad guy here cause this can just be an innocent friendly thing idk I just feel like it’s weird that all of a sudden he’s leaving heart emojis instead of our thumbs up. So I thumbed up his next message and he immediately hearted my next message again lol ok I guess my question is, I’m i reading way too into this? Or should I cut back our meetings because I’m not interested at all and I really want my professional life to be strictly professional.

TL;DR
My coworker started red hearting my messages instead of our usual thumbs up and he’s being super friendly. Am I reading way too much into such a small thing?