On the dekstop version of Strava, you can view the "flybys" of people who were active in similar areas at similar times. This used to be on for everyone by default, but Strava turned it off by default for privacy reasons.
Anyway, yes, I almost certainly looked at the flyby of my run that Sunday morning and saw yours. Checking again now, assuming you are N, it looks as though we very nearly met. You were heading up to Chanctonbury and I was on my way down and had just turned right off the SDW onto the trail back to Cissbury...
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Yup - that was me. A near miss!