Because bonds grow stronger with time. How would you feel investing in a man and then to find out that all that time you spent was for nothing.because They just weren't sure. So you keep him around knowing full well that in your gut. It wouldn't work. Its selfish of you especially if he really loves you. Make a decision but dont keep it going cause you aint sure. He could be out there finding someone who is sure about him. Its rare for older women to actually be committed to young men like this and this is the reason. Age gap will create alot of implications down the road. Find a man your age if you want someone to stick around when you get old.