Search Results: not returning phone calls

I was in a casual relationship with someone but feel for him. Whilst staring to have sex I asked him if he was seeing his ex again and whilst inside me he told me he was seeing someone but nothing had changed between us and liked me more than before. I told him I couldn't do this and stopped the sex and walked away. Disappeared for 45 days and went on holidays with my mates. Posting photos of fun time on istagram, including a photo of me with my ex. He then posted a photo of him and his ex and I posted back to my own account a pic saying that 'I don't believe in plastic surgery but in your case go ahead' It was a generic message - not tagged him or referred to him in any way. Next thing I know, this morning I got a call from a blocked number and I could hear a girl moaning - having sex. They hang up 38 sec later as soon as they finished. Maybe I am being paranoid, and this was just a random call, but my gut feeling tells me that it was not. Why would he react like this? Last week, I texted him for the first time in 40 days - initially he was snappy but I said things were cool and we could train together (he was my Personal trainer for 4 years before all this happened and we were pretty good friends/ got on really well). I told him I was going away again and would call him on my return to train. Then the posting of the photos of my boyfriend and his girlfriend and the plastic surgery message took place and today the blocked phone call. Can I have someone's opinion? My friend thinks I hurt his ego by walking away during sex, disappearing for 45 days, showing that I was having fun whilst on holidays with my postings on istagram (looking sexy and very very fit).