Never giving me any hint

I know someone who’s 51 from work but in a different location and has nothing to do with my daily work routine. I have been having a strong crush over her & she has told me couple of months ago that we are just colleagues etc. we do chat most days & it’s always about office stories, her children and her health etc. we were texting last night about football, and I told her if Argentina wins give a kiss to her husband. She replied that they are not talking for couple of days & I replied if I was there I would have given her a French kiss, she reacted with a laughing emoji. This morning I continued the chat & said did I bother you with football updates and since she was watching on mobile, her stream was slow. She said it was okay, her son was also texting when I was. I replied that is great, so you got messages from your son and the guy who thinks you are a MILF. she again responded with an emoji. I just don’t know how do I navigate this.

I am 37 btw.