should i let go or give it a try?

my husband and i are separated for 4mths now, he wants to work things out w me, and kept asking for me go back. but i see that hes also still adding a ton of women on fbook, but they dont accept him, so hes on their followed list. hes also trying to talk w women on youtube too. i just know it that if one of them talks to him and is willing to date him, hed forget about me. i did went back on fbook, w a lot of guys adding me, and i did started a new job w guys wanting to get to know me more and see where we go. but i havent gotten serious w anyone and only treats them all like friends. idk, should i forget my husband and leave us as we are, or give it a try? hes obviously trying to find someone else to move on.