i think you handle the situation very well.
it is pretty hard for outsiders to gauge the level of your relationship.
Most girls will create a scene letting go the frustrations of betrayal.
I think your relationship lack communication whereby you mentioned both of you are busy with work.
Perhaps during this period of time, whereby he has expressed his affections, but you have ignored him, making him to look for other alternatives to let go his steam.
Have a good talk with him and see whether to carry on with this relationship,to look for someone better. Ladies sixth sense on this are quite strong to be honest.
Good luck.
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