Am i wrong? kung pinagseselosan ko yung workmate ng gf ko?

I’m in a WLW relationship with my girlfriend, who’s 24, and I’m 28. This is her first job, which she started last September. Everything was going well until I noticed she’s grown close to a workmate (also a woman). I started feeling uneasy when her workmate began chatting with her more frequently. It feels like this girl might have feelings for my girlfriend. I’m not sure, but it makes me uncomfortable because their chats don’t seem work-related.

For example, she asked things like, “Do you play the piano?” or “Have you seen this movie?”—just casual, personal stuff, exchanging playlist? They’ve been exchanging messages, and I started to feel jealous because it reminds me of how I was with her when we were just starting.

What also gets to me is how my girlfriend responds; it feels different from how she usually talks to others. I know they’re not doing anything wrong, but I told her I felt uncomfortable with this person. She reassured me there’s nothing to worry about and said they’re just friends. She also mentioned her coworker is straight and that’s just how she is.

I asked her to stop replying to this person, but she said it’s just for the sake of maintaining good relationships at work. I get that—this is her first job, and she wants everything to go smoothly without causing tension. But it’s still hard for me not to feel jealous.

I want her to be happy at her workplace, so we’re okay now because she assured me that everything’s fine. But honestly, I still feel uneasy about her workmate. This January, I checked her Messenger, and I didn’t see much conversation between them. But then I saw they were chatting on MS Teams (since they use it for work), and it hurt me because I realized they were still talking there.

I told my girlfriend again that I’m really uncomfortable with their closeness. She reassured me that there’s nothing inappropriate, but for me, if your partner feels uncomfortable about someone, it might be better to create some distance or handle it differently. I didn’t tell her what she should do—I left it up to her—but I made sure she knew how I felt.

Later, she ended up talking to her workmate about it, saying I was bothered by their closeness. That’s when I felt even more upset because I believe it’s a private issue between us that didn’t need to involve her workmate. She explained that she just didn’t want her workmate to misunderstand her sudden change in behavior, like chatting less.

I feel guilty now because I know she’s happy with their friendship, and this made her sad. Am I being selfish? She said she talked to her workmate for my sake because she loves me and doesn’t want me to feel this way. And now she and her workmate are awkward and I know she is uncomfy sa office nila and I felt bad because of that naguiguilty ako para bang sana di ko nalang sinabe

Am i wrong? dahil nag-seselos ako? kung feeling ko may malisya yung workmate niya sa kanya? Selfish ba ? Immature ba ?Nagooverthink lang ba ako?