hello sorry you are going thru this my h left in january and i will say, this board has helped alot also about a year and a half ago, my h did the same thing that time i was lucky, it only lasted about a month this time i don't think i am going to be so lucky
i guess i mean to say that there is always hope if he is not sure about what he wants, make sure you are always the best you that you can be when he is around
but please, don't chase, pursue, cry, or beg those things push people out the door
keep on posting and share details on your sitch that will help