Why are men so complicated?..girls should i trust him or not?

Dont trust him they both might be playing you to there own advantage.She goes to his house he reasures you by texting you to let you know shes been there and that you shouldnt worry nothing happened.Just say to him look if you want me and only me then dont talk to her or have her at your house shes causing problems between us and he sould understand.Otherwise tell him to take a run and jump.