Search Results: worried about his past

So my boyfriend and I has talked about our past relationships few times
He told me about his first girlfriend
I think she was the only ex girlfriend of his that affected him the most
This is coz he told me that she's his first everything (his first girlfriend, he lost his virginity to her...) and that she left him for another guy
They were together 4 years ago and only was together for 4 months
He has told me that she's works in the same workplace and thats how they met
He told me that he did try to go back with her again before he met me but she didn't care and just ignored him and thats the last time he talked to her (which was 1.5 years ago)
He told me all of this in the beginning of our relationship
Recently we were kinda talking about our exes again and he told me that his ex still works in the same workplace and thought she left already
He tells me that he rarely sees her though
- he works mon to fri during day time
- she works fri evenings and sundays
He tells me that she's doing this... doing that..
And i asked "how do u know all this?"
And he said "my co worker tells me. They are close friends. He just tells me out of no where. I dont talk to my ex. I always try to avoid her esp on fridays coz thats when she comes to work or if we have compulsory meetings and then i just walk out. I thought she would of left this workplace ages ago "
We hardly talk about our exes but few times they have come up
Tbh i am feeling abit jealous and uncomfortable that my boyfriend and his first ex still works in the same workplace but i know i can't do anything about it 😔
Me and my boyfriend been together for a year now (im his longest relationship and he's my longest relationship)
Do u think i should be worried and feel this way? Or i shouldnt?
Would u feel jealous and uncomfortable too? If your partner and his/her ex still works in the same place?

First of all you need to know im quiet and shy and my crush is loud and popular we are sorta friends ish. and he is always awkward around or annoyed... i can't tell but in class his nice to me, now onto the story. (he also already subspects me or talking about him.. his trying to always find out what im doing)))

So i was in class waiting to leave when my crush we will call him Op.. anyways he got to decide which table leaves first and i was almost sure he would pick the table with his best friend whos a girl on it but he didn't he said something like "Ah let me just decide... for a few hours.. maybe three" then the teacher picked a table and then i heared his friend on my table call out to him so he then smiled and picked my table caue of his friend... so then i went to my locker bay my friend going on and on about how he picked my table. Anyways pretty much skipping all boring details i was talking about what he said in class and well

... this is what happened

*READ THIS FOR A QUICK BLURB* *btw i said this pretty loud too*

"But it was so funny when he said-

*op walks around the corner walking right past me i look at him immediatly stop talking and turn back to my friend in silence*

*he goes over to his friend then as i try to tell my friend what happened and how shocked i am (i thought he left) he walked past again getting out of the locker bay from what i can remember is that he briefly looked at me curious... then op came back to the locker bay walked past me and was looking at me and my friend and went to his friend got his friend and walked out of the locker bay

did he hear me?

sorry if im overthinking this
I've got anxiety :)... and im worried and curious