Partner and his female bestfriend

I really feel guilty for having a problem with her but I just can’t help it.

Many of you will probably dislike me for having an issue with their relationship but deep down I just cannot trust her.

He goes round to her house twice a week, they have a smoke and chill. This never use to bother me until he told me a few things about her.

Whenever he picks her up from town or anything when she’s been drinking she will try to grab his crotch area. Even if she’s drunk round hers she tries to do it.

In my head these alarms bells start screaming in my ears. That horrible feeling in the pit of my stomach hit me. He said shes always done it, before I came along he’d push her off and laugh about it now I’m with him he says he tells her she can’t do it anymore as it’s not funny and he’s with me.

He promised me nothing never has and never will happen between them and he sees her as a sister. But I always wonder if she sees him as more.

He’s her go to, anything needs fixing he’s being called, anything’s happening he’s gotta be there. We are meant to be moving in together soon and she’s got in massive mood because my partner won’t be there any more to help or do things anymore for her. I do get this, as bestfriends are always there. But she’s also claimed I won’t be able to put up with him.

He had ADHD and autism and I’ve been with him long enough to know he has his mad moments and crazy times. I’ve been there always for him. It hurts that she can’t see me being able to deal with him.

My partner said years back she tried to kiss him too. Just small comments always stick in my mind and feel guilty for feeling the way I do.

I’ve spoken to my partner and he tries to reassure me and says it’s Just like me and my female friends. But deep down I don’t feel it is. Not on her part anyway.