Search Results: should i dump him girlfriend

So my boyfriend has told me about this girl at his work and he told me about how she got dumped by her boyfriend (of 8 years)
she's the same age as me
He showed me a picture of her since they are friends on facebook
And recently i noticed that she starts following my boyfriend
My boyfriend always post his gym selfie pictures on his fb and instagram and he also put pictures of us both on his fb and instagram frequently as well. He puts the pictures of us on public too.
And she always like his gym selfies and our pictures as well
And he started following her back few weeks later
Thing is.. I've noticed that most of the ladies he works with always like his pictures as well (his gym selfies and our pictures of us together)
Most of the females he works with are either taken or married and some of them are older (around 40s, 50s)
But anyway, back to that girl, since she's single now, does it seem like she's interested in my boyfriend?
Im worried coz she's same age as me and she's single now
Me and my boyfriend accidently bumped into her the other day while we were shopping and she seems like a nice, sweet girl. He introduced me to her and she said to me "hi, nice to meet you" and she already knows im his girlfriend since everyone at his work knows about me
But i never know.. she might be faking it
So yeah , should i be worried? Or am i overthinking it?

There’s this girl that works with my boyfriend
So a month ago, he told me about this girl. They were working together that day and he told me that she burst into tears out of nowhere and she told him that she got dumped.
He said to me:
“She got dumped by her boyfriend of 8 years for another girl. That’s fucked. She’s so nice”
So I found her facebook page on my boyfriends facebook list
She uploads a picture of herself and my boyfriend liked the picture
My boyfriend uploads pictures of himself at the gym and sometimes he has shirtless photos as well (on his facebook and Instagram)
He also uploads pictures of both of us together on his facebook and Instagram and his captions always mentions that im his “girl” , im his “lady” and im his “other half”
He put the pictures of himself on public and he also put the pictures of us on public too
I stalk his facebook and Instagram often so I see who likes his pictures. This girl would always like his selfie gym photos and the pictures of both of us
The other day, I was with my boyfriend but I went to a different shop. I came out and saw him talking to a girl. I came behind him and I heard the conversation:
Her – Hey.. I thought you were with your girlfriend today?
Him – Yeah I am with her. She’s here. Im trying to call her now.
I popped up behind him and then he introduced me to her:
Him – Hey, this is the girl I work with *points to her*
Her – Hey, nice to meet you
Me – Nice to meet you too
Her – He told me about your graduation. Congrats on graduating!
Me – Thank you!
And then we said goodbyes and left
Then he was like to me:
Him – That was the girl I was talking about. The one that got dumped by her boyfriend. She’s so nice
Me – Yeah seems like a nice girl
Do you think it seems like he likes her? and she likes him?
Or am I overthinking it?
If a guy is interested in someone else as well, would he still put pictures of him and his girlfriend up on his facebook and instagram and put them on public where everyone can see them?