I’m going through a similar situation in my life. I would MSG her to tell her to have a beautiful day and that I love her or , “how is your day going ?”. it seems to me that when she does respond it would be 5-6 hours later in the day with some type of excuse . I know it hurts knowing she does not want to deal with you or reply in a timely matter. I’m still young compared to you but I’ve been in relationships my whole life since my hormones kicked in. lol not implying that your old either, I just don’t have kids yet. Here is my two cents towards your question. just don’t think about it too much all your doing is killing yourself on the inside. don’t beat yourself up about too much and try to find inner peace with yourself. it really helped me to not think or have that urge to text or call her.There’re plenty of more beautiful mermaids in the vast oceans. Throw out a line with bait and reel em in 🙂 try to find a vice or create new habits per-say exercising or taking your kids out for a fun day with dad 🙂 wish the best of luck to you Steve. If its meant to be than its meant to be.