A. When a man tells you that he loves you and then he is seen with another partner who is half his age….you realise that he is a liar and a cheat!
Very seldomly, he may be seen with an older partner. It happens.
You can either put up with it or you can turn around and walk away from it.
You can love someone, but you do not need to put up with that sort of treatment.
You can give him an ultimatum. It’s either you or her. If he does not give you a reasonable answer or he chooses her, then the answer is quite obvious.