BF says He has not been doing drugs

Welcome !

It seems as if your gut is telling you he's using again . Is this something you're prepared to live with as the relationship continues ?

Hugs , if you want some . There is always hope !

Yes , relapse happens . So does getting back up and fighting again . Relapse isn't failure . It's a set back . Completely giving up the fight is failure . Deciding " I can't do it, so there's no use in even trying ." is failure . But even those feelings of total hopelessness can be overcome . Human beings have an incredible survival instinct .

If possible , please find yourself a Nar-Anon group ( Narcotics Anonymous ) . They also offer support for family and friends of people who are going through drug addiction and recovery .

You can also look into your BF's treatment center and see if they offer resources to help you understand what he's going through and how you can help .

It is a brave and scary thing he's embarking on . I wish him ( and you ) the very best . You are always welcome here to ask questions or just vent if you need to . None of us are professionals but we can tell you our experiences and perhaps you will find something useful from that .