I caught my GF masturbating to the sounds my neighbor made – update 7 [real story]

If anyone was waiting for an update, I apologize for the long wait. An unexpected thing came up related to my work, and I haven't had the time or energy to write about what's been happening. Here's an update about what had happened over the last month:

Nothing big happened the first week aside from my neighbor liking her stories and a few DM exchanges between them. Taylor usually posts 1-2 stories a day. These are usually photos she takes in the elevator before going to work if she's not working from home that day, some scenery she finds interesting during the day, or post-workout photos from her gym class once or twice a week. My neighbor likes almost all her stories, and occasionally sent a few replies to her stories basically saying she looked hot/nice.

The weekend after that she stayed with me. I checked her DMs right after she went outside to smoke and saw that she had messaged my neighbor to let him know she was going out, and he replied that he'd be out soon. Since then, I've started checking her DMs right after she leaves, and most of the time, one of them is giving the other a heads-up before going out.

Nothing else notable happened that weekend, but I think something big happened the weekend after. We were hanging out at my place, she left for another smoke trip but didn't come back for almost 45 minutes. When she came back she smelled like weed and she also looked high. I asked her if she had smoked weed, and she said "Maybe a little bit." I immediately knew it was with the neighbor, so I started questioning her. I said I didn't know if we had any, to which she replied some guys downstairs had some and shared with her. I asked if I knew them, and she said it was my neighbor and a friend of his.

Given she was high, I wanted to push a little more and jokingly said I didn't know they had become close (we talked about her chatting with him back then, but she never said she was constantly communicating with him). She said they've been hanging out if they happen to go out at the same time for a while. I then, again jokingly, said the guy's clearly sounds like an asshole, and I couldn't understand how she could hang out with him without being annoyed. She said he's actually a chill guy and asked what makes me think he's an asshole. I said the constant loud talking and music they play even late at night is a good start. She basically said that's annoying but it's just friends hanging together. I then brought up him getting really loud during sex, and all the dirty talk we can clearly hear. She laughed at that and said we can't blame people for what turns them on.

I then asked her who the other person was (since she mentioned "guys") and what they usually talk about when they hang out. She said it was just my neighbor's friend and they just talk about this and that, nothing particular. After that she paused, looked at me, and playfully said if I was jealous or something. I said no, I was just curious. She laughed a bit more, paused again, and said if I think those guys eyed her. I said it's impossible not to given the way she looked (she was wearing her regular cami top and shorts), and I can't believe the guy didn't make a move on her so far. She said what makes me think he hasn't already and laughed it off. I decided to play it cool and said I couldn't blame them.

After that, we went back to watching the series we had been watching, and she fell asleep while we did. The next two weeks were similar to the one before, but over the weekends, I noticed two things and I've been going crazy over it. First, whenever she went out, I started jokingly asking her to say hi to him for me, and she would always just laugh and say she sure would. But aside from that, I've noticed that Taylor has been going to the bathroom whenever she comes back inside. I know it could just be me fantasizing, but based on what her friend says, she had no problem making out with someone else. So I'm starting to think she's been doing it with my neighbor too. Or at least that's what I'd like to believe, and if that's the case, it's only a matter of time before they take things to the next level.

For the next week, she and I will both be away for vacations (separate locations), and she'll stay for a week while I'll stay for three weeks. Taylor will be going back to her hometown while I go back to mine. I'm extremely disappointed and mad on the inside that I'm taking an extended leave at this time, but everything's already scheduled and I have no apparent reason to cut my vacation short. But I'll do my best to check on her, hoping things progress even if I'm not here.