I am admittedly biased against them (it always makes it seem like the spouses are not individuals and are unhealthily enmeshed), but what are you hoping to achieve?
You need to focus on detachment. Getting upset because she doesn't say I love you at the end of every single phone conversation?
Are you seeing an individual counselor? I can't recommend that highly enough.
Me: 44 H: 44 Kids: 20, 16, 16, and 10 Together/Married: 22 years H announced he was emotionally detached and considering D: 4/4/16 H announced he is going to try to stay and reconnect: 5/1/16