Sincerely repenting for one's past

Q: A muslim unmarried girl has affairs with multiple hindu boys for several years secretly and her family is not aware. Now her family is getting her married to a muslim boy. She says that she has realized now that she did wrong and would like to do Tawbah. Can she repent now? Will her repentance be accepted? And now how can she repent?

Doubts regarding divorce

Q: In the past I had some disputes with my wife. Alhamdulillah things are better now. However, sometimes I have waswasa if divorce may be occurred.

I have several questions but biggest one I will ask now others maybe later. One such instance is as follows that I would like to ask. We had been separated for several months. There was a meeting with some elders about our marriage and it was decided to give us 1 month more to sort things out to get back together. At the end of this meeting, I said something to one of the elders like "okay so we have 1 month to work things out, if things work out she will be back within 1 month and if not then..." and I basically stopped and there was non-verbal expressions. I did not mention "divorce" in that sentence and neither do I believe that was my intention. However, I did sort of in a way imply divorce and afterwards I mentioned to others as well that "we have a 1 month time limit to work things out".

We got back together but a couple of weeks past 1 month. After 1 month passed, I started getting waswasa that maybe I had stated a conditional divorce which I did not realize earlier.

I do believe although I was implying that things will not work out if it goes past one month, I did not intend it to be a conditional divorce upon one month but rather that a decision of divorce would have to be made (so basically I was saying something like so we have 1 month to make a decision).

I don't believe my understanding was that divorce would take place automatically after 1 month, but rather that a decision would have to be made. After 1 month but before we got back together, as part of a conversation I also said something to my wife like "We had 1 month time limit, if things worked out you would be back if not we would be ending it" or something similar like "if not things would be over".

I just want to know if this was conditional divorce. Again I did not use the word of divorce and I don't believe it was my intention.