Hi mum's looking for a bit of advice I feel like going insane I have with partner since 2008 and we were good but recently he's so secretive hiding his phone but recently he's take to a girl on strava tell her how good she doing on her runs and like her post which am not assed about it but it fact he's lies about it and makes out all in my head and she one the mums at school so I have face her everyday and today I found on his phone he keep looking at her Instagram and still still denied it please so give me advice x