Search Results: having sex with an ex

Met this girl (24) online who moved to my city 2 years ago for work and things moved fast. One 3 hour dinner at a restaurant & I got the impression that she was a complete "goody two shoes." We had so many values in common... so I thought :/
2nd date she invited me over and we slept together, which caught me off guard. She initiated everything, but I went with it b/c it felt special. I didn't finish and she said "I'm sorry I'm not very good at this" which got me thinking she had not been with many people.
2 wks later we were in a relationship & the only thing I knew about her past was her one and only 9 month relationship & some dating that didn't work out. A week later at 11:30pm she gets a missed call & text from a guy saying "Hey, I miss you." She explained it was a guy she dated earlier in the year. No big deal she didn't even reply.

A week ago and a text form her ex for a valid reason created another awkward situation, which led to me asking dangerous questions. How old she was when she lost her virginity & how many guys she had slept with? I didn't think I would get unsavory answers, but I did.

She lost her V at 20/21 (not a big deal), told me I was the 8th guy she had slept with & the last guy was 4/5 months before me. With her only being 24 & a 9 month relationship in there I did the math. From the time she broke up with her ex there was an 18 month period where she slept with 6 guys. Very unsavory info, but it gets worse... 2 of them were one night stands where she invited the guys over to her apmt the very first time, the other 4 she slept with after only 2-4 dates and one turned into a friends with benefits situation for 2 weeks :/

We have already BOTH fallen for each other hard and I'm devastated. She feels AWFUL, said she was lonely & admits the mistakes & how stupid she was. I feel like she was only after sex, had no respect for herself, didn't learn from the mistakes & am having a hard time seeing her as the same person I thought she was.

I went out a few times with my coworker in 2015. As promising as the relationship was, I broke it off because I didn't feel I was ready for a new relationship, because I wasn't over my first girlfriend, even though we broke up a year prior.
It became an easier decision when she told me she still lived with her ex. But she made it awkward as hell at work. But she quit a few months later.
Fast forward to June 2016, she comes back to work and she holds a grudge against me. Especially since I got back together with my original girlfriend.
I left in August of 2016 and in in December of 2016, my girlfriend and I were having issues and the co-worker called me up one night, and asked if I'd hang out and have sex with her before she moved home the next day. Even though my girlfriend was leaving for a mission and our breakup was inevitable, I didn't do it.
But in early 2017, the co-worker and I started talking regularly and talked about everything that happened. But then she started trying to convert me to the Mormon church and that was the same religion my ex was a part of and I wasn't Mormon.
I blocked and didn't say absolutely anything to the co-worker from that point on.
Last year, I made a new Facebook, and the co-worker never came up during that time.
Last night, I had this very unusual dream where I met up with the co-worker and we worked things out and all that.
Today, I'm on Facebook and she came up as a friend suggestion, with 0 mutual friends and I used a new email and no phone number when I made this Facebook. In addition to that, all I have to do is type 'n' and she is the first result on my search and I never searched her once.
Like I said, it's been almost two years since we last spoke and she hasn't come up whatsoever in this Facebook 8n the year I've had it.

This has really thrown me for a loop and I haven't even thought about her since we stopped talking.

Is this a coincidence or more than that?