Give Up

Hiya really don't know where to start but basically my daughter left for uni and since then i've been lost without her and don't feel I want to stay in my marriage anymore.I suppose I've only stayed because she was still at home and acted like a buffer for us both.You may think I'm lonely well thats not it were never intimate never cuddle sit opposite ends of the sofa and I want to end it but I know he still loves me but I don't think I do.We've been together over 15 years and I just can't bring myself to tell him like others I crave some attention just a cuddle sometimes off a friend,head is in a complete shed over this.