Should I be concerned about a female neighbor?

A female neighbor invited my husband over on several occasions to get food ( he is friends with her dad). They live in the same house. Her 7 year old daughter began to get close to my husband and one day this woman text him saying her daughter just wanted him ( she called him by the cute name her daughter called him). She text him one night talking all about her depression. Our marriage wasn’t strong and I told him I didn’t feel comfortable with them becoming such good friends and some of these things that had happened but he continued to do it saying neither of them wanted each other and he didn’t want to cause drama. Then on his birthday she text him saying “hey happy bday this is ….. wasn’t sure if u had my number cuz (her daughter) told her I made him delete it. He ask her what she got him and she ask him did he want some more banana pudding. So he sends her a big smiley face and says yeah I’ll take some. And then he says wait what kind of puddin lol. Am I I overreacting about all this?

Updates
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This started in March of last year and it continued no matter what I said. It only stopped for a couple months in October because my husband said he found out they were racist and he had me text them making excuses as to why. Then on his bday in January is when she text him and it was like nothing ever happened lol. She was gonna make him more pudding lol
Should I be concerned about a female neighbor?
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