My husband is very popular with women. What should I do?

My husband and I were high school classmates and fell in love for 10 years. Our relationship has always been very good, but it is relatively dull. There were no twists and turns in the middle, so I got married naturally. He has always been very kind to me, but one thing has always been a knot in my heart, that is, my husband has always been very popular with women. From junior high school, high school, university to every company where he worked, he can know several good female classmates or colleagues in every environment, some are normal, some are good enough to be caring and attentive, and send things to each other, but he has not found any more excessive behavior, and it is hard to say anything.

I have been at home since I was pregnant 1 for many years. Sometimes he will bring me back some small things or delicious food, but basically he didn't buy them himself, either the female colleague gave them to him or the female colleague bought him more by the way. According to him, in order to improve their relationship in the company, he often helps them, so they often send him things to express their gratitude, and he only brought them back for me because of me. Although he said he thought of me, it was all given to him by other women. There is always an unspeakable taste in his heart. Thinking about it is also the kindness of others, and there is nothing to refute. Sometimes I can't help looking at his mobile phone, and I can always see some short messages that are asking questions or ambiguous. They were all sent to him by several lesbians in her company, and I also read his reply. I feel that they are chatting happily. I asked him, and he said that all colleagues in his company talked like this, which was purely friendly and easy to talk to, with no other meaning. Moreover, later he began to get used to deleting short messages without showing them to me, saying that he was afraid that I would think too much.

I can't accept that he is so ambiguous with other women, but he is becoming more and more indifferent to me when he goes home.