Does that count as cheating?

Staacix

So lately I have had this gut feeling that there’s something on my boyfriends phone, he will never leave his phone unattended however managed to do so, I usually would never invade his privacy however I had that gut feeling telling me to look… first thing I did was go on his instagram and he had been searching several girls, his news feed was practically just instagram girls too. I confronted him, he denied but once realised I saw he admitted and just said ‘sorry it won’t happen again’. I now feel like he’s just looking at other girls thinking god knows what… but I’m just confused on what I should do and how to act/

By the way!!! He is so protective and extremely jealous, instagram is very touchy subject and he doesnt like when I have my photos on public etc.