/adv/ - Advice

>broke up with ex three year ago
>slept together until summer before last
>she didn't fuck anyone else the entire time, iwas her first and only etc etc
>she comes back into town to visit with her new bf a couple months ago
>she comes to a reunion party at my house
>everything is going well
>i have a blast, flirt with everyone, even talk to her and her new bf a bit
>they lock themselves in my bathroom for like five minutes
>paranoid as fuck they banged in there
>her and new bf are back in town for the holidays probably

My best friend (known her before i did etc) said he can't believe she would do something like that (fuck in my bathroom to spite me or some shit) and I feel the same way cuz she's really kind, but i can't see another reason they would do that. I naturally just assume they did. I am considering literally just asking her next time i see her 'did you fuck your bf in my bathroom' because I'll know right away if she's telling the truth or not.

is that a terrible idea /adv/ or what? idk but it's been bothering me for the past three months.

Also: how do you take your coffee? 2 milk master race