I just found out that my husband has been texting a 17 year old girl.

I (43F) found out that I’ve been catching my husband (45M) in lies about his work trips for the past 3 months. Today I found out that he’s been texting a 17 year old girl. She is almost half his age. This happened after reading his txt messages on his phone. I’m devastated and feel like my world has been shattered into a million little peices. I don’t know how I could’ve missed this for so long or how he could do this to me. I feel so betrayed, hurt, and angry. I just don’t know what to do anymore. I’m in complete and utter disbelief right now. I don’t know how to get over this. I just feel like a part of me has died and I don’t know how I’m going to be able to get over this. I also found out that he never love me or care about me, and that’s why he has been using me for the past 20 years.