Do I just try and move on?

I met this girl about 6 months ago in a group, at the time she had just broken up with her ex (who was back in her home country). We start texting a lot and I started implying we should meetup but I never ask her out or mention the word date. We arrange drinks but she gets a single ticket to the ballet a few hours before hand so has to cancel. Never get around to rearranging something else but do meetup in the group a good few times but never by ourselves. Asked friends advice on it and they told me to wait until January before asking her out again as to give her time to get over her ex.

She heads back home in January (a good few hours flying away) but hasn't booked a return flight. When she first gets back (to her home country) she is texting me then she video calls me saying how she is unsure if she'll come back or not (I think she wanted me to convince her to come back) and how she has gotten a job back home.

I start to move on as she isn't coming back and the texting kinda stops but then she texts me saying she has booked flights back to Ireland but in that time I had noticed a guy being tagged in status/photos with her and I put two and two together. A few days before she is meant to return I see a photo of the two of them kissing on my news feed, feel a bit crap seeing that and don't actually read the text associated with it but the post keeps getting activity a day or two later and showing up up on my wall. So I read the status and it turns out the guy who she had been seeing for a four weeks has died under violent circumstances. I didn't know what to do so I ended up doing nothing, not even sending her a text.

About two weeks later she texts me, only then do I pass on my condolences but she is back in Ireland. She comes back to the group and starts texting me again but I am a bit selfish in not wanted to getting my hopes up of something happening between us as I know she won't be right after everything that has happened to her so try keep a bit of distance.

Out of the blue I get a text from her asking if I want to meetup about 4PM near where I live for a coffee for an hour or so. We meetup but rather than going to a cafe we end up in the pub but we ending up talking for hours and she tells me about what happened to the guy she was seeing and by midnight we are still out. She has since missed her bus home so I offer her my bed and I'll sleep on the couch. She agrees but we get back to mine we end up kissing, having a lot of fun in bed and not getting a whole lot of sleep. The next day we a both talk about our surprise on what happened as neither of us thought that would happen when we arranged to meetup. I walk her back to the bus stop, say goodbye and I get a text off her saying she had a great night.

I ask her out again but she replies while she had a great night and hasn't laughed that much in ages she needs to work on her right now, she has just gotten a new job and everything that has happened with the the other guy (he only died 6-7 weeks ago) she doesn't want to start any new relationships. I said to her that is completely understandably, I even respect her a even more for being straight with me and if she ever wants to meetup just a friends let me know.

But what do I do now, do I just try and move on? It's been wrecking my head for the last few days and I don't know what to do other than try and limit my interactions with her.

Sorry for the long post.