He loves or better word "infatuated" with Alex. End it now before it causes more pain in the long run. You'll find someone who loves you and you won't question it.

A good quote to young lovers is "sometimes we accept the love we think we deserve."

You deserve better. Make decisions that make you happy. The sooner you learn that, the better. No one else can make those decisions for your happiness but you.

I'm gonna go on a limb and say you can't handle polyamory yet. I couldn't either. You need to be so confident (or oblivious) that you don't get jealous. That's really hard for some people.

If it were me, I'd tap out. Maybe find someone who would dote only on me because that's what I need in a relationship.

But YMMV. I'm just a random on the Internet.

It sounds like he thinks of you more as a casual friend that he hangs with sometimes. What does your gf think of this?

I read somewhere that people are supposed to act like their best selves during the early stages of a relationship. If the relationship is early on, which I assume it is, then his best self is apparently ignoring your needs for men

Based on this and the other comments you've said here it sounds like it's time to go your separate ways. They are not the one for you because they are showing you that you are not the one for them. Successful relationships MUST work both ways. Both partners must be valued and feel valued.

And once you leave someone, don't go back to them. If someone is going to show you who they are believe them the first time.

I would never do that to my girlfriend. I think you should move on from him but IDK, it sounds rough

I'm having a similar thing with my girlfriend except she thinks I'm ignoring her. I'd say talk to him and see what he says.

You're not bad, I'm so sorry to hear. It's really not fun

It sounds like he views Alex as his main partner, and you're his backup.

(Practising my Dutch because I kinda speak it)

Het klinkt voor mij alsof hij denkt dat je een 'trofee' bent om mee te pronken.