Sex with my ex

I (32m) had sex with my ex (33f) a few days ago. We've been separated for about a year and going through a pretty stressful legal battle, as we share a house and a 2.5 year old. We've both been dating a little bit during this time and have both had bad experiences, which we both were open about with each other recently.

About a month ago, we started to get along after a long period of discord. We had a very loose agreement to try and work things out in the summer, but that failed largely because of us both seeing other people at the time. What brought us back to a healthier relationship has been her cooperation and assistance in helping me set boundaries with my parents, and it's made me feel really seen and that she values my feelings - something that was not always evident during our relationship. I have also had the opportunity to be there for her this past month with her dad dying 2 weeks ago. I was there with her the entire day leading up to his death and cooked and cleaned and spent the night at her place. Nothing sexual happened, but she took plenty of opportunity to commend me for a lot of the changes she has seen in me (I've been doing a lot of self-care and reflection on my shortcomings) and expressed regret for things that she would have done differently in various conflicts we had during our relationship. Her taking accountability for her mistakes is a huge change and one that really meant a lot to see.

The following week I checked in on her here and there and invited her over for dinner Monday. We've been talking about spending more time as a family so I thought that would be a good chance to do that. After we put our son to bed we got into some wine, and had a lot of conversations about our feelings toward each other and how it seems weird that the changes we've made should benefit others and not each other. Anyway, she stayed the night and we had very, very passionate sex.

The next day, after she got off work, I asked her how she felt about last night. She said she wasn't quite sure. I told her it was definitely more than just sex for me, and that I didn't want to further complicate her life, given that she's also grieving right now, but that we should definitely have some sort of talk about what this means so that I can manage my expectations. She responded at first about how complicated and confusing things are, and that we obviously both still really love each other. I told her that I was definitely still very much in love with her, especially after how supportive she had been the past month and the changes I've witnessed. She didn't respond to that until the next day which was just a simple "hey sorry I haven't responded, I haven't had the time." I told her there wasn't a rush but that it was important that we chat about it after being so intimate. I haven't received a response to that, but she has messaged me about other things pertaining to our son and seems to just he dodging me all together. I'm trying to be patient but it also feels really terrible and like I'm being pushed to the side. My question is: should I continue to be patient and wait until she addresses this, or tell her that I'm feeling ignored and would like SOME sort of response?

TL;DR: I had sex with my ex and after a couple of attempts to get a convo started about what it means for us, I'm feeling ignored.