Me and my girlfriend (m&f both early 20’s), have been dating for almost a year. She is a thicker woman which hasn’t really bothered me as I have dated other women of similar builds as well as women who are much slimmer. Our sex life is good usually we are into similar things in the bed room so that helps to keep things interesting. However while her love language is mainly touch and actions mine is more touch and words of affirmation this includes sexual talking which really helps me to get in the mood and have better sex. Unfortunately she is not very good at sexual talk and when ever I try I do almost all the talking. We have talked about it but she is not very good with her words which makes it difficult for her. About a lil over a month ago i started to have sexual fantasies about other women while I was at work or away from her. This got worse when she approached me about a potential threesome a week or so later. She is pansexual and has kinda always wanted to try it out. We talked it out and agreed that if we both vibed with a girl we would consider if she was down. Fast forward a week and I was posting anonymously on NSFW subreddits trying to get the attention of other women. Not for sex just sexual attention. I also would occasionally download and delete dating app for the same reasons. I never have and never will have sex with some else( unless the threesome mentioned above happens). It has been getting more intense recently as this past week I got sick transferring it to her just as she also got her period. I am doing my best to comfort her and show her how beautiful and sexy she is but it feels kinda like empty complements I’m just saying. Do to her past she has some self confidence issues that she has been working through and I don’t want to be someone else that only hurts her feelings. Also last night one of a few sexual dreams about other women that I have had while with her. It wasn’t overtly sexual and she was also in the dream but it was definitely sexual if you know what I’m saying. (Dreams be weird 🤷🏾‍♂️)But what should I do we haven’t had any real big fights and when we have something go on between us we can always talk about it and move on. I still think she is beautiful and an amazing woman and I don’t want to break up or leave her but I feel like if I bring this up it will go against all the confidence that she has built up during our relationship. Should I tell her and talk about it or just leave it be and try to get over it?

Ps. All post on NSFW Reddit subs where deleted before I posted this and I don’t plant to post any more or download a dating apps. I hate sneaking behind her back also her sixth sense goes crazy so if I kept it up she would probably notice