So, I'm 22m and she's 20F (I'd say 6-7 objectively). LTR 4 years old. We used to live together for over 1,5 year, but I didn't want to anymore (I get angry and lazy when I don't have space for myself). Recently a few months back I told her I wanted the relationship to be open and that I still want to be with her like we are and that the relationship between us will not suffer because of this, and that she can do the same because equality. Back then I was already (as in, reducing frequency) meeting her about ~1 time a week, never more often. Sex is always present between us. She's a girl who used to be very shy (I opened her up), submissive, loving, quiet, calm - she rarely gets angry, she'd rather be sad, and she never gives me drama (good, I will not deal with this kinda shit). Despite her saying she doesn't have oneitis for me anymore, I sense and see she still does, although not as strong as it used to be when I didn't have interest in non-monogamy. I told her that she is free to leave if she does not want me in non-exclusivity.

She "broke up" with me several times, I didn't handle it in the best way first couple times, however I've quickly learned to be like "OK" with it (I honestly am). Every time I was like "OK" she would come back the next day and we'd fuck. Sex is present thorough the relationship and she knows to expect me being horny every time we meet. She's become somewhat addicted to sex. Whether she'll keep doing it with me or not, I can't control her. I let her persona be my lesson if it comes to be.

Now there's a second girl ~23F (a 9 to me) that I've known for over 3 years although she lives too far for me to be more interested, I've only met her during parties we both attended. She's also shy, introverted, reserved, calm. I'd say the two girls are quite similar (talk about preferences). I get a strong pull to her. I've friendzoned myself from her in the early stages of me knowing her because I was in a relationship (duh) and a beta nab (doh). The whole reason I wanted to open relationship was because I did not feel right with restraining myself from women like this. My LTR knows about her. Recently I made a move on her and she was reserved because she thought I am still in LTR. We had a great time during the party dancing a lot, later I've tried to escalate (I'm new to this) but it seems like she did not have enough comfort because she got scared. I said OK and went on with life. I guess that's a lesson to see deeper into "always escalate" rule.

Whenever I feel this kinda pull to a girl I always get confused as to whether the other party is as interested in me (or any interested), well if she is, she's definitely not gonna tell overtly, she seems very reserved in contacts with people, calculated kinda way. Okay, fuck this. Long story short, I am interested in her and so far what she's giving me is that she's still interested in me. If not then I'll find out shortly because I am not going to be a friend. Jesus.

Now the girl used to be interested in sex with my LTR like half a year ago to "learn how to sex", lol. My LTR knew shortly after (they met once before) coz I told her, neither of them had guts to meet though. LTR has interest in women that she finds attractive. It took a long long time but, recent event of me making a move on her got to my LTR through word of ear of my buddy who was with us at the party, LTR went depressed (she does not know or does not care/believe I did not have sex with her and I didn't care to inform her obviously), I was in comfort/reassuring mode last few weeks, and guess what they're meeting in a few days, the girl is coming to my LTR for 1-2 nights. I have no idea what's gonna happen besides one thing: they surely gonna talk about me.

Now I wanted to meet up with the girl in her city during a concert I was interested in anyway but meeting them both at the same time at my LTR's might not be the best idea, because I haven't had sex with the girl, so this could just be awkward. Maybe I should just ignore this, since my LTR hasn't told me yet that the girl is coming over to her. Might as well do that.

I wonder how can I handle this situation best, I'm new to TRP but I'm willing to exercise some stuff.