I trust DH 100%. He has children and an exW and we've been together for 4 years. Six months after we got together she asked him to get back together and for the 4 of them to move away. He didn't tell me about this but I know he said he wasn't interested and never would be again. At collection of the children she dresses quite provocatively and sends pictures to him of the children but also with her in claiming she didn't take one of them alone
She has also been posting 'mysterious' statuses on FB about relationships starting again and fresh starts etc.
He is business like in his communications regarding the children and ignores her attempts to joke or indulge in unrelated conversation. A couple of months into our relationship she claimed he came on to her but she has a huge history of lying and cheating. She sent me loads of texts saying they were first loves and there'd always be something there. I think she's renewed her attempts to get him back recently as theres been increased communication and photos. Do I do anything?