My ex and I split about two weeks ago, I believe I posted about how I left her, but the feelings were mutual. Anyway the thing about our break-up was it wasn't b/c we hated eachother, the relationship wasn't working or even for another person, it was b/c my Ex struggles with dealing with anxiety and stress and she legitimately had some problems to work out and on top of our relationship it began to be too much on her. So we broke up. We discussed how we wanted a future together and that this break-up was so that she could figure her stuff out and be ready for a relationship with me.

Two weeks later we had a long conversation together. Things have been going very well for her and I was surprised to see a major change in her a change mainly caused b/c she took care of the business that was stressing her out (student loans, major exams, and her own inner game struggles.) After our conversation we spent the afternoon together and agreed that what we were trying to do (take time apart from one another, broken up, to better ourselves) was in fact working and we both saw potential for a future us. We wanted to continue it, but with one another in the picture. SO we agreed to spend a small amount of time together each week. Getting coffee in the morning once and having sex when we felt so inclined. The idea being that we had no obligations to one another, that is we didn't make plans, things happened when they happened. First let me say for all you cynics who have been hurt by women, my ex is not interested in other guys. There has been no loss of attraction or feelings of intimacy between us, and we agreed to tell each other if anything ever happened with someone else. So both of us are under the assumption that after a certain, unspecified amount of time, we will be ready to start things up again and if that happens great, and if during that time someone else comes along for either of us all we need do is tell one another and given the other person enough to space to move on and then we can be friends. however my ex has made it abundantly CLEAR, she wants no other guy, just me, and this space is for herself. I was skeptical at first, but after seeing the genuine effort and improvements she has made I am convinced she is not keeping me around until something better comes along.

with that said, I have a question.

How long can an arrangement like this last? My chief concern is that (although I have had no issue before maintaining attraction) by being available with essentially no strings attached she will lose interest in me, naturally. She is head over heels for me, I'm a pretty fucking awesome guy and BF, but I'm feeling the pressure to maintain attraction, can this last for a bit while she figures this out? or will our arrangement fail?

does anyone have any experience with this or can anyone give me some advice on the matter?