Welcome to the forum.
I have converted your post to an introduction, as we need one per the forum rules and this is pretty introductory 
What magick to you practice and how long have you been practicing?
Here is a getting started with magick guide.
By the way, your post was flagged as spam by the system bot, and I can see it’s not so I cleared that flag. It happens when people copy and paste their posts, and it thinks the poster is a spambot for “typing” it so fast.
This is a red flag for an impostor. They do this a lot, they tell you fancy things to flatter you and get you enthralled. However, do not mistake, you are probably lunch. Samael was my mentor for s while, and I had an impostor pretend to be him and get all lovey dovey about it. Samael is a deity level entity, it doesn’t need any “wives”, I feel it’s really above that human stuff, though I could be wrong.
My best advice is banish, then cleanse and ward and take care of your spiritual hygiene, and then when you are all clear evoke Samael using his seal an full protections. If he then tells you 'yes that was me" you’re probably good.
We have more ways to tell if an entity as an imposter among these tutorials. A good one is to ask it to show you it’s seal/sigil: an imposter usually can’t do it.